387447320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 975421440

約数和(自身を除く): 587974120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 83, 94, 104, 130, 166, 188, 191, 235, 260, 332, 376, 382, 415, 470, 520, 611, 664, 764, 830, 940, 955, 1079, 1222, 1528, 1660, 1880, 1910, 2158, 2444, 2483, 3055, 3320, 3820, 3901, 4316, 4888, 4966, 5395, 6110, 7640, 7802, 8632, 8977, 9932, 10790, 12220, 12415, 15604, 15853, 17954, 19505, 19864, 21580, 24440, 24830, 31208, 31706, 35908, 39010, 43160, 44885, 49660, 50713, 63412, 71816, 78020, 79265, 89770, 99320, 101426, 116701, 126824, 156040, 158530, 179540, 202852, 206089, 233402, 253565, 317060, 359080, 405704, 412178, 466804, 507130, 583505, 634120, 745091, 824356, 933608, 1014260, 1030445, 1167010, 1490182, 1648712, 2028520, 2060890, 2334020, 2980364, 3725455, 4121780, 4668040, 5960728, 7450910, 8243560, 9686183, 14901820, 19372366, 29803640, 38744732, 48430915, 77489464, 96861830, 193723660, 387447320]

約数ペア:

[(1, 387447320), (2, 193723660), (4, 96861830), (5, 77489464), (8, 48430915), (10, 38744732), (13, 29803640), (20, 19372366), (26, 14901820), (40, 9686183), (47, 8243560), (52, 7450910), (65, 5960728), (83, 4668040), (94, 4121780), (104, 3725455), (130, 2980364), (166, 2334020), (188, 2060890), (191, 2028520), (235, 1648712), (260, 1490182), (332, 1167010), (376, 1030445), (382, 1014260), (415, 933608), (470, 824356), (520, 745091), (611, 634120), (664, 583505), (764, 507130), (830, 466804), (940, 412178), (955, 405704), (1079, 359080), (1222, 317060), (1528, 253565), (1660, 233402), (1880, 206089), (1910, 202852), (2158, 179540), (2444, 158530), (2483, 156040), (3055, 126824), (3320, 116701), (3820, 101426), (3901, 99320), (4316, 89770), (4888, 79265), (4966, 78020), (5395, 71816), (6110, 63412), (7640, 50713), (7802, 49660), (8632, 44885), (8977, 43160), (9932, 39010), (10790, 35908), (12220, 31706), (12415, 31208), (15604, 24830), (15853, 24440), (17954, 21580), (19505, 19864)]