15551220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 46448640

約数和(自身を除く): 30897420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 59, 60, 69, 92, 115, 118, 138, 177, 191, 230, 236, 276, 295, 345, 354, 382, 460, 573, 590, 690, 708, 764, 885, 955, 1146, 1180, 1357, 1380, 1770, 1910, 2292, 2714, 2865, 3540, 3820, 4071, 4393, 5428, 5730, 6785, 8142, 8786, 11269, 11460, 13179, 13570, 16284, 17572, 20355, 21965, 22538, 26358, 27140, 33807, 40710, 43930, 45076, 52716, 56345, 65895, 67614, 81420, 87860, 112690, 131790, 135228, 169035, 225380, 259187, 263580, 338070, 518374, 676140, 777561, 1036748, 1295935, 1555122, 2591870, 3110244, 3887805, 5183740, 7775610, 15551220]

約数ペア:

[(1, 15551220), (2, 7775610), (3, 5183740), (4, 3887805), (5, 3110244), (6, 2591870), (10, 1555122), (12, 1295935), (15, 1036748), (20, 777561), (23, 676140), (30, 518374), (46, 338070), (59, 263580), (60, 259187), (69, 225380), (92, 169035), (115, 135228), (118, 131790), (138, 112690), (177, 87860), (191, 81420), (230, 67614), (236, 65895), (276, 56345), (295, 52716), (345, 45076), (354, 43930), (382, 40710), (460, 33807), (573, 27140), (590, 26358), (690, 22538), (708, 21965), (764, 20355), (885, 17572), (955, 16284), (1146, 13570), (1180, 13179), (1357, 11460), (1380, 11269), (1770, 8786), (1910, 8142), (2292, 6785), (2714, 5730), (2865, 5428), (3540, 4393), (3820, 4071)]