261271736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{509}}^1$

素因数の和:852

約数の個数: 64

約数和(自身を含む): 565488000

約数和(自身を除く): 304216264

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 307, 418, 509, 614, 836, 1018, 1228, 1672, 2036, 2456, 3377, 4072, 5599, 5833, 6754, 9671, 11198, 11666, 13508, 19342, 22396, 23332, 27016, 38684, 44792, 46664, 64163, 77368, 106381, 128326, 156263, 212762, 256652, 312526, 425524, 513304, 625052, 851048, 1250104, 1718893, 2968997, 3437786, 5937994, 6875572, 11875988, 13751144, 23751976, 32658967, 65317934, 130635868, 261271736]

約数ペア:

[(1, 261271736), (2, 130635868), (4, 65317934), (8, 32658967), (11, 23751976), (19, 13751144), (22, 11875988), (38, 6875572), (44, 5937994), (76, 3437786), (88, 2968997), (152, 1718893), (209, 1250104), (307, 851048), (418, 625052), (509, 513304), (614, 425524), (836, 312526), (1018, 256652), (1228, 212762), (1672, 156263), (2036, 128326), (2456, 106381), (3377, 77368), (4072, 64163), (5599, 46664), (5833, 44792), (6754, 38684), (9671, 27016), (11198, 23332), (11666, 22396), (13508, 19342)]