81359280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^3\times {\mathrm{23}}^1$

素因数の和:93

約数の個数: 240

約数和(自身を含む): 302927040

約数和(自身を除く): 221567760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 23, 24, 30, 34, 36, 40, 45, 46, 48, 51, 60, 68, 69, 72, 80, 85, 90, 92, 102, 115, 120, 136, 138, 144, 153, 170, 180, 184, 204, 207, 230, 240, 255, 272, 276, 289, 306, 340, 345, 360, 368, 391, 408, 414, 460, 510, 552, 578, 612, 680, 690, 720, 765, 782, 816, 828, 867, 920, 1020, 1035, 1104, 1156, 1173, 1224, 1360, 1380, 1445, 1530, 1564, 1656, 1734, 1840, 1955, 2040, 2070, 2312, 2346, 2448, 2601, 2760, 2890, 3060, 3128, 3312, 3468, 3519, 3910, 4080, 4140, 4335, 4624, 4692, 4913, 5202, 5520, 5780, 5865, 6120, 6256, 6647, 6936, 7038, 7820, 8280, 8670, 9384, 9826, 10404, 11560, 11730, 12240, 13005, 13294, 13872, 14076, 14739, 15640, 16560, 17340, 17595, 18768, 19652, 19941, 20808, 23120, 23460, 24565, 26010, 26588, 28152, 29478, 31280, 33235, 34680, 35190, 39304, 39882, 41616, 44217, 46920, 49130, 52020, 53176, 56304, 58956, 59823, 66470, 69360, 70380, 73695, 78608, 79764, 88434, 93840, 98260, 99705, 104040, 106352, 112999, 117912, 119646, 132940, 140760, 147390, 159528, 176868, 196520, 199410, 208080, 221085, 225998, 235824, 239292, 265880, 281520, 294780, 299115, 319056, 338997, 353736, 393040, 398820, 442170, 451996, 478584, 531760, 564995, 589560, 598230, 677994, 707472, 797640, 884340, 903992, 957168, 1016991, 1129990, 1179120, 1196460, 1355988, 1595280, 1694985, 1768680, 1807984, 2033982, 2259980, 2392920, 2711976, 3389970, 3537360, 4067964, 4519960, 4785840, 5084955, 5423952, 6779940, 8135928, 9039920, 10169910, 13559880, 16271856, 20339820, 27119760, 40679640, 81359280]

約数ペア:

[(1, 81359280), (2, 40679640), (3, 27119760), (4, 20339820), (5, 16271856), (6, 13559880), (8, 10169910), (9, 9039920), (10, 8135928), (12, 6779940), (15, 5423952), (16, 5084955), (17, 4785840), (18, 4519960), (20, 4067964), (23, 3537360), (24, 3389970), (30, 2711976), (34, 2392920), (36, 2259980), (40, 2033982), (45, 1807984), (46, 1768680), (48, 1694985), (51, 1595280), (60, 1355988), (68, 1196460), (69, 1179120), (72, 1129990), (80, 1016991), (85, 957168), (90, 903992), (92, 884340), (102, 797640), (115, 707472), (120, 677994), (136, 598230), (138, 589560), (144, 564995), (153, 531760), (170, 478584), (180, 451996), (184, 442170), (204, 398820), (207, 393040), (230, 353736), (240, 338997), (255, 319056), (272, 299115), (276, 294780), (289, 281520), (306, 265880), (340, 239292), (345, 235824), (360, 225998), (368, 221085), (391, 208080), (408, 199410), (414, 196520), (460, 176868), (510, 159528), (552, 147390), (578, 140760), (612, 132940), (680, 119646), (690, 117912), (720, 112999), (765, 106352), (782, 104040), (816, 99705), (828, 98260), (867, 93840), (920, 88434), (1020, 79764), (1035, 78608), (1104, 73695), (1156, 70380), (1173, 69360), (1224, 66470), (1360, 59823), (1380, 58956), (1445, 56304), (1530, 53176), (1564, 52020), (1656, 49130), (1734, 46920), (1840, 44217), (1955, 41616), (2040, 39882), (2070, 39304), (2312, 35190), (2346, 34680), (2448, 33235), (2601, 31280), (2760, 29478), (2890, 28152), (3060, 26588), (3128, 26010), (3312, 24565), (3468, 23460), (3519, 23120), (3910, 20808), (4080, 19941), (4140, 19652), (4335, 18768), (4624, 17595), (4692, 17340), (4913, 16560), (5202, 15640), (5520, 14739), (5780, 14076), (5865, 13872), (6120, 13294), (6256, 13005), (6647, 12240), (6936, 11730), (7038, 11560), (7820, 10404), (8280, 9826), (8670, 9384)]