647758980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29741}}^1$

素因数の和:29778

約数の個数: 108

約数和(自身を含む): 2159804556

約数和(自身を除く): 1512045576

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 990, 1089, 1210, 1452, 1815, 1980, 2178, 2420, 3630, 4356, 5445, 7260, 10890, 21780, 29741, 59482, 89223, 118964, 148705, 178446, 267669, 297410, 327151, 356892, 446115, 535338, 594820, 654302, 892230, 981453, 1070676, 1308604, 1338345, 1635755, 1784460, 1962906, 2676690, 2944359, 3271510, 3598661, 3925812, 4907265, 5353380, 5888718, 6543020, 7197322, 9814530, 10795983, 11777436, 14394644, 14721795, 17993305, 19629060, 21591966, 29443590, 32387949, 35986610, 43183932, 53979915, 58887180, 64775898, 71973220, 107959830, 129551796, 161939745, 215919660, 323879490, 647758980]

約数ペア:

[(1, 647758980), (2, 323879490), (3, 215919660), (4, 161939745), (5, 129551796), (6, 107959830), (9, 71973220), (10, 64775898), (11, 58887180), (12, 53979915), (15, 43183932), (18, 35986610), (20, 32387949), (22, 29443590), (30, 21591966), (33, 19629060), (36, 17993305), (44, 14721795), (45, 14394644), (55, 11777436), (60, 10795983), (66, 9814530), (90, 7197322), (99, 6543020), (110, 5888718), (121, 5353380), (132, 4907265), (165, 3925812), (180, 3598661), (198, 3271510), (220, 2944359), (242, 2676690), (330, 1962906), (363, 1784460), (396, 1635755), (484, 1338345), (495, 1308604), (605, 1070676), (660, 981453), (726, 892230), (990, 654302), (1089, 594820), (1210, 535338), (1452, 446115), (1815, 356892), (1980, 327151), (2178, 297410), (2420, 267669), (3630, 178446), (4356, 148705), (5445, 118964), (7260, 89223), (10890, 59482), (21780, 29741)]