865432520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:943

約数の個数: 96

約数和(自身を含む): 2085792120

約数和(自身を除く): 1220359600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 292, 361, 365, 380, 584, 722, 730, 760, 821, 1387, 1444, 1460, 1642, 1805, 2774, 2888, 2920, 3284, 3610, 4105, 5548, 6568, 6935, 7220, 8210, 11096, 13870, 14440, 15599, 16420, 26353, 27740, 31198, 32840, 52706, 55480, 59933, 62396, 77995, 105412, 119866, 124792, 131765, 155990, 210824, 239732, 263530, 296381, 299665, 311980, 479464, 527060, 592762, 599330, 623960, 1054120, 1138727, 1185524, 1198660, 1481905, 2277454, 2371048, 2397320, 2963810, 4554908, 5693635, 5927620, 9109816, 11387270, 11855240, 21635813, 22774540, 43271626, 45549080, 86543252, 108179065, 173086504, 216358130, 432716260, 865432520]

約数ペア:

[(1, 865432520), (2, 432716260), (4, 216358130), (5, 173086504), (8, 108179065), (10, 86543252), (19, 45549080), (20, 43271626), (38, 22774540), (40, 21635813), (73, 11855240), (76, 11387270), (95, 9109816), (146, 5927620), (152, 5693635), (190, 4554908), (292, 2963810), (361, 2397320), (365, 2371048), (380, 2277454), (584, 1481905), (722, 1198660), (730, 1185524), (760, 1138727), (821, 1054120), (1387, 623960), (1444, 599330), (1460, 592762), (1642, 527060), (1805, 479464), (2774, 311980), (2888, 299665), (2920, 296381), (3284, 263530), (3610, 239732), (4105, 210824), (5548, 155990), (6568, 131765), (6935, 124792), (7220, 119866), (8210, 105412), (11096, 77995), (13870, 62396), (14440, 59933), (15599, 55480), (16420, 52706), (26353, 32840), (27740, 31198)]