139648520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 128

約数和(自身を含む): 359441280

約数和(自身を除く): 219792760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 61, 86, 88, 110, 121, 122, 172, 215, 220, 242, 244, 305, 344, 430, 440, 473, 484, 488, 605, 610, 671, 860, 946, 968, 1210, 1220, 1331, 1342, 1720, 1892, 2365, 2420, 2440, 2623, 2662, 2684, 3355, 3784, 4730, 4840, 5203, 5246, 5324, 5368, 6655, 6710, 7381, 9460, 10406, 10492, 10648, 13115, 13310, 13420, 14762, 18920, 20812, 20984, 26015, 26230, 26620, 26840, 28853, 29524, 36905, 41624, 52030, 52460, 53240, 57233, 57706, 59048, 73810, 81191, 104060, 104920, 114466, 115412, 144265, 147620, 162382, 208120, 228932, 230824, 286165, 288530, 295240, 317383, 324764, 405955, 457864, 572330, 577060, 634766, 649528, 811910, 1144660, 1154120, 1269532, 1586915, 1623820, 2289320, 2539064, 3173830, 3247640, 3491213, 6347660, 6982426, 12695320, 13964852, 17456065, 27929704, 34912130, 69824260, 139648520]

約数ペア:

[(1, 139648520), (2, 69824260), (4, 34912130), (5, 27929704), (8, 17456065), (10, 13964852), (11, 12695320), (20, 6982426), (22, 6347660), (40, 3491213), (43, 3247640), (44, 3173830), (55, 2539064), (61, 2289320), (86, 1623820), (88, 1586915), (110, 1269532), (121, 1154120), (122, 1144660), (172, 811910), (215, 649528), (220, 634766), (242, 577060), (244, 572330), (305, 457864), (344, 405955), (430, 324764), (440, 317383), (473, 295240), (484, 288530), (488, 286165), (605, 230824), (610, 228932), (671, 208120), (860, 162382), (946, 147620), (968, 144265), (1210, 115412), (1220, 114466), (1331, 104920), (1342, 104060), (1720, 81191), (1892, 73810), (2365, 59048), (2420, 57706), (2440, 57233), (2623, 53240), (2662, 52460), (2684, 52030), (3355, 41624), (3784, 36905), (4730, 29524), (4840, 28853), (5203, 26840), (5246, 26620), (5324, 26230), (5368, 26015), (6655, 20984), (6710, 20812), (7381, 18920), (9460, 14762), (10406, 13420), (10492, 13310), (10648, 13115)]