2788045678840

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{641}}^1\times {\mathrm{474839}}^1$

素因数の和:475720

約数の個数: 64

約数和(自身を含む): 6310338696000

約数和(自身を除く): 3522293017160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 641, 916, 1145, 1282, 1832, 2290, 2564, 3205, 4580, 5128, 6410, 9160, 12820, 25640, 146789, 293578, 474839, 587156, 733945, 949678, 1174312, 1467890, 1899356, 2374195, 2935780, 3798712, 4748390, 5871560, 9496780, 18993560, 108738131, 217476262, 304371799, 434952524, 543690655, 608743598, 869905048, 1087381310, 1217487196, 1521858995, 2174762620, 2434974392, 3043717990, 4349525240, 6087435980, 12174871960, 69701141971, 139402283942, 278804567884, 348505709855, 557609135768, 697011419710, 1394022839420, 2788045678840]

約数ペア:

[(1, 2788045678840), (2, 1394022839420), (4, 697011419710), (5, 557609135768), (8, 348505709855), (10, 278804567884), (20, 139402283942), (40, 69701141971), (229, 12174871960), (458, 6087435980), (641, 4349525240), (916, 3043717990), (1145, 2434974392), (1282, 2174762620), (1832, 1521858995), (2290, 1217487196), (2564, 1087381310), (3205, 869905048), (4580, 608743598), (5128, 543690655), (6410, 434952524), (9160, 304371799), (12820, 217476262), (25640, 108738131), (146789, 18993560), (293578, 9496780), (474839, 5871560), (587156, 4748390), (733945, 3798712), (949678, 2935780), (1174312, 2374195), (1467890, 1899356)]