20793887360

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^2\times {\mathrm{33809}}^1$

素因数の和:33890

約数の個数: 96

約数和(自身を含む): 51367194900

約数和(自身を除く): 30573307540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 961, 992, 1240, 1922, 1984, 2480, 3844, 3968, 4805, 4960, 7688, 9610, 9920, 15376, 19220, 19840, 30752, 33809, 38440, 61504, 67618, 76880, 123008, 135236, 153760, 169045, 270472, 307520, 338090, 540944, 615040, 676180, 1048079, 1081888, 1352360, 2096158, 2163776, 2704720, 4192316, 4327552, 5240395, 5409440, 8384632, 10480790, 10818880, 16769264, 20961580, 21637760, 32490449, 33538528, 41923160, 64980898, 67077056, 83846320, 129961796, 134154112, 162452245, 167692640, 259923592, 324904490, 335385280, 519847184, 649808980, 670770560, 1039694368, 1299617960, 2079388736, 2599235920, 4158777472, 5198471840, 10396943680, 20793887360]

約数ペア:

[(1, 20793887360), (2, 10396943680), (4, 5198471840), (5, 4158777472), (8, 2599235920), (10, 2079388736), (16, 1299617960), (20, 1039694368), (31, 670770560), (32, 649808980), (40, 519847184), (62, 335385280), (64, 324904490), (80, 259923592), (124, 167692640), (128, 162452245), (155, 134154112), (160, 129961796), (248, 83846320), (310, 67077056), (320, 64980898), (496, 41923160), (620, 33538528), (640, 32490449), (961, 21637760), (992, 20961580), (1240, 16769264), (1922, 10818880), (1984, 10480790), (2480, 8384632), (3844, 5409440), (3968, 5240395), (4805, 4327552), (4960, 4192316), (7688, 2704720), (9610, 2163776), (9920, 2096158), (15376, 1352360), (19220, 1081888), (19840, 1048079), (30752, 676180), (33809, 615040), (38440, 540944), (61504, 338090), (67618, 307520), (76880, 270472), (123008, 169045), (135236, 153760)]