388395280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1785

約数の個数: 160

約数和(自身を含む): 1147926528

約数和(自身を除く): 759531248

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 182, 208, 217, 248, 260, 280, 310, 364, 403, 434, 455, 496, 520, 560, 620, 728, 806, 868, 910, 1040, 1085, 1240, 1456, 1612, 1721, 1736, 1820, 2015, 2170, 2480, 2821, 3224, 3442, 3472, 3640, 4030, 4340, 5642, 6448, 6884, 7280, 8060, 8605, 8680, 11284, 12047, 13768, 14105, 16120, 17210, 17360, 22373, 22568, 24094, 27536, 28210, 32240, 34420, 44746, 45136, 48188, 53351, 56420, 60235, 68840, 89492, 96376, 106702, 111865, 112840, 120470, 137680, 156611, 178984, 192752, 213404, 223730, 225680, 240940, 266755, 313222, 357968, 373457, 426808, 447460, 481880, 533510, 626444, 693563, 746914, 783055, 853616, 894920, 963760, 1067020, 1252888, 1387126, 1493828, 1566110, 1789840, 1867285, 2134040, 2505776, 2774252, 2987656, 3132220, 3467815, 3734570, 4268080, 4854941, 5548504, 5975312, 6264440, 6935630, 7469140, 9709882, 11097008, 12528880, 13871260, 14938280, 19419764, 24274705, 27742520, 29876560, 38839528, 48549410, 55485040, 77679056, 97098820, 194197640, 388395280]

約数ペア:

[(1, 388395280), (2, 194197640), (4, 97098820), (5, 77679056), (7, 55485040), (8, 48549410), (10, 38839528), (13, 29876560), (14, 27742520), (16, 24274705), (20, 19419764), (26, 14938280), (28, 13871260), (31, 12528880), (35, 11097008), (40, 9709882), (52, 7469140), (56, 6935630), (62, 6264440), (65, 5975312), (70, 5548504), (80, 4854941), (91, 4268080), (104, 3734570), (112, 3467815), (124, 3132220), (130, 2987656), (140, 2774252), (155, 2505776), (182, 2134040), (208, 1867285), (217, 1789840), (248, 1566110), (260, 1493828), (280, 1387126), (310, 1252888), (364, 1067020), (403, 963760), (434, 894920), (455, 853616), (496, 783055), (520, 746914), (560, 693563), (620, 626444), (728, 533510), (806, 481880), (868, 447460), (910, 426808), (1040, 373457), (1085, 357968), (1240, 313222), (1456, 266755), (1612, 240940), (1721, 225680), (1736, 223730), (1820, 213404), (2015, 192752), (2170, 178984), (2480, 156611), (2821, 137680), (3224, 120470), (3442, 112840), (3472, 111865), (3640, 106702), (4030, 96376), (4340, 89492), (5642, 68840), (6448, 60235), (6884, 56420), (7280, 53351), (8060, 48188), (8605, 45136), (8680, 44746), (11284, 34420), (12047, 32240), (13768, 28210), (14105, 27536), (16120, 24094), (17210, 22568), (17360, 22373)]