11421280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:81

約数の個数: 144

約数和(自身を含む): 32492880

約数和(自身を除く): 21071600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 19, 20, 26, 32, 34, 38, 40, 52, 65, 68, 76, 80, 85, 95, 104, 130, 136, 152, 160, 170, 190, 208, 221, 247, 260, 272, 289, 304, 323, 340, 380, 416, 442, 494, 520, 544, 578, 608, 646, 680, 760, 884, 988, 1040, 1105, 1156, 1235, 1292, 1360, 1445, 1520, 1615, 1768, 1976, 2080, 2210, 2312, 2470, 2584, 2720, 2890, 3040, 3230, 3536, 3757, 3952, 4199, 4420, 4624, 4940, 5168, 5491, 5780, 6460, 7072, 7514, 7904, 8398, 8840, 9248, 9880, 10336, 10982, 11560, 12920, 15028, 16796, 17680, 18785, 19760, 20995, 21964, 23120, 25840, 27455, 30056, 33592, 35360, 37570, 39520, 41990, 43928, 46240, 51680, 54910, 60112, 67184, 71383, 75140, 83980, 87856, 109820, 120224, 134368, 142766, 150280, 167960, 175712, 219640, 285532, 300560, 335920, 356915, 439280, 571064, 601120, 671840, 713830, 878560, 1142128, 1427660, 2284256, 2855320, 5710640, 11421280]

約数ペア:

[(1, 11421280), (2, 5710640), (4, 2855320), (5, 2284256), (8, 1427660), (10, 1142128), (13, 878560), (16, 713830), (17, 671840), (19, 601120), (20, 571064), (26, 439280), (32, 356915), (34, 335920), (38, 300560), (40, 285532), (52, 219640), (65, 175712), (68, 167960), (76, 150280), (80, 142766), (85, 134368), (95, 120224), (104, 109820), (130, 87856), (136, 83980), (152, 75140), (160, 71383), (170, 67184), (190, 60112), (208, 54910), (221, 51680), (247, 46240), (260, 43928), (272, 41990), (289, 39520), (304, 37570), (323, 35360), (340, 33592), (380, 30056), (416, 27455), (442, 25840), (494, 23120), (520, 21964), (544, 20995), (578, 19760), (608, 18785), (646, 17680), (680, 16796), (760, 15028), (884, 12920), (988, 11560), (1040, 10982), (1105, 10336), (1156, 9880), (1235, 9248), (1292, 8840), (1360, 8398), (1445, 7904), (1520, 7514), (1615, 7072), (1768, 6460), (1976, 5780), (2080, 5491), (2210, 5168), (2312, 4940), (2470, 4624), (2584, 4420), (2720, 4199), (2890, 3952), (3040, 3757), (3230, 3536)]