400818708

素因数分解:

$2^2\times 3^2\times {\mathrm{137}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 1028500200

約数和(自身を除く): 627681492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 137, 181, 274, 362, 411, 449, 543, 548, 724, 822, 898, 1086, 1233, 1347, 1629, 1644, 1796, 2172, 2466, 2694, 3258, 4041, 4932, 5388, 6516, 8082, 16164, 24797, 49594, 61513, 74391, 81269, 99188, 123026, 148782, 162538, 184539, 223173, 243807, 246052, 297564, 325076, 369078, 446346, 487614, 553617, 731421, 738156, 892692, 975228, 1107234, 1462842, 2214468, 2925684, 11133853, 22267706, 33401559, 44535412, 66803118, 100204677, 133606236, 200409354, 400818708]

約数ペア:

[(1, 400818708), (2, 200409354), (3, 133606236), (4, 100204677), (6, 66803118), (9, 44535412), (12, 33401559), (18, 22267706), (36, 11133853), (137, 2925684), (181, 2214468), (274, 1462842), (362, 1107234), (411, 975228), (449, 892692), (543, 738156), (548, 731421), (724, 553617), (822, 487614), (898, 446346), (1086, 369078), (1233, 325076), (1347, 297564), (1629, 246052), (1644, 243807), (1796, 223173), (2172, 184539), (2466, 162538), (2694, 148782), (3258, 123026), (4041, 99188), (4932, 81269), (5388, 74391), (6516, 61513), (8082, 49594), (16164, 24797)]