256823710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{563}}^1$

素因数の和:634

約数の個数: 96

約数和(自身を含む): 567090720

約数和(自身を除く): 310267010

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 29, 55, 58, 65, 110, 121, 130, 143, 145, 242, 286, 290, 319, 377, 563, 605, 638, 715, 754, 1126, 1210, 1430, 1573, 1595, 1885, 2815, 3146, 3190, 3509, 3770, 4147, 5630, 6193, 7018, 7319, 7865, 8294, 12386, 14638, 15730, 16327, 17545, 20735, 30965, 32654, 35090, 36595, 41470, 45617, 61930, 68123, 73190, 80509, 81635, 91234, 136246, 161018, 163270, 179597, 212251, 228085, 340615, 359194, 402545, 424502, 456170, 681230, 805090, 885599, 897985, 1061255, 1771198, 1795970, 1975567, 2122510, 2334761, 3951134, 4427995, 4669522, 8855990, 9877835, 11673805, 19755670, 23347610, 25682371, 51364742, 128411855, 256823710]

約数ペア:

[(1, 256823710), (2, 128411855), (5, 51364742), (10, 25682371), (11, 23347610), (13, 19755670), (22, 11673805), (26, 9877835), (29, 8855990), (55, 4669522), (58, 4427995), (65, 3951134), (110, 2334761), (121, 2122510), (130, 1975567), (143, 1795970), (145, 1771198), (242, 1061255), (286, 897985), (290, 885599), (319, 805090), (377, 681230), (563, 456170), (605, 424502), (638, 402545), (715, 359194), (754, 340615), (1126, 228085), (1210, 212251), (1430, 179597), (1573, 163270), (1595, 161018), (1885, 136246), (2815, 91234), (3146, 81635), (3190, 80509), (3509, 73190), (3770, 68123), (4147, 61930), (5630, 45617), (6193, 41470), (7018, 36595), (7319, 35090), (7865, 32654), (8294, 30965), (12386, 20735), (14638, 17545), (15730, 16327)]