261414768

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 160

約数和(自身を含む): 747888640

約数和(自身を除く): 486473872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 37, 38, 48, 57, 61, 74, 76, 111, 114, 122, 127, 148, 152, 183, 222, 228, 244, 254, 296, 304, 366, 381, 444, 456, 488, 508, 592, 703, 732, 762, 888, 912, 976, 1016, 1159, 1406, 1464, 1524, 1776, 2032, 2109, 2257, 2318, 2413, 2812, 2928, 3048, 3477, 4218, 4514, 4636, 4699, 4826, 5624, 6096, 6771, 6954, 7239, 7747, 8436, 9028, 9272, 9398, 9652, 11248, 13542, 13908, 14097, 14478, 15494, 16872, 18056, 18544, 18796, 19304, 23241, 27084, 27816, 28194, 28956, 30988, 33744, 36112, 37592, 38608, 42883, 46482, 54168, 55632, 56388, 57912, 61976, 75184, 85766, 89281, 92964, 108336, 112776, 115824, 123952, 128649, 147193, 171532, 178562, 185928, 225552, 257298, 267843, 286639, 294386, 343064, 357124, 371856, 441579, 514596, 535686, 573278, 588772, 686128, 714248, 859917, 883158, 1029192, 1071372, 1146556, 1177544, 1428496, 1719834, 1766316, 2058384, 2142744, 2293112, 2355088, 3439668, 3532632, 4285488, 4586224, 5446141, 6879336, 7065264, 10892282, 13758672, 16338423, 21784564, 32676846, 43569128, 65353692, 87138256, 130707384, 261414768]

約数ペア:

[(1, 261414768), (2, 130707384), (3, 87138256), (4, 65353692), (6, 43569128), (8, 32676846), (12, 21784564), (16, 16338423), (19, 13758672), (24, 10892282), (37, 7065264), (38, 6879336), (48, 5446141), (57, 4586224), (61, 4285488), (74, 3532632), (76, 3439668), (111, 2355088), (114, 2293112), (122, 2142744), (127, 2058384), (148, 1766316), (152, 1719834), (183, 1428496), (222, 1177544), (228, 1146556), (244, 1071372), (254, 1029192), (296, 883158), (304, 859917), (366, 714248), (381, 686128), (444, 588772), (456, 573278), (488, 535686), (508, 514596), (592, 441579), (703, 371856), (732, 357124), (762, 343064), (888, 294386), (912, 286639), (976, 267843), (1016, 257298), (1159, 225552), (1406, 185928), (1464, 178562), (1524, 171532), (1776, 147193), (2032, 128649), (2109, 123952), (2257, 115824), (2318, 112776), (2413, 108336), (2812, 92964), (2928, 89281), (3048, 85766), (3477, 75184), (4218, 61976), (4514, 57912), (4636, 56388), (4699, 55632), (4826, 54168), (5624, 46482), (6096, 42883), (6771, 38608), (6954, 37592), (7239, 36112), (7747, 33744), (8436, 30988), (9028, 28956), (9272, 28194), (9398, 27816), (9652, 27084), (11248, 23241), (13542, 19304), (13908, 18796), (14097, 18544), (14478, 18056), (15494, 16872)]