198613980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15541}}^1$

素因数の和:15627

約数の個数: 72

約数和(自身を含む): 610987104

約数和(自身を除く): 412373124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 15541, 31082, 46623, 62164, 77705, 93246, 139869, 155410, 186492, 233115, 279738, 310820, 466230, 559476, 699345, 932460, 1103411, 1398690, 2206822, 2797380, 3310233, 4413644, 5517055, 6620466, 9930699, 11034110, 13240932, 16551165, 19861398, 22068220, 33102330, 39722796, 49653495, 66204660, 99306990, 198613980]

約数ペア:

[(1, 198613980), (2, 99306990), (3, 66204660), (4, 49653495), (5, 39722796), (6, 33102330), (9, 22068220), (10, 19861398), (12, 16551165), (15, 13240932), (18, 11034110), (20, 9930699), (30, 6620466), (36, 5517055), (45, 4413644), (60, 3310233), (71, 2797380), (90, 2206822), (142, 1398690), (180, 1103411), (213, 932460), (284, 699345), (355, 559476), (426, 466230), (639, 310820), (710, 279738), (852, 233115), (1065, 186492), (1278, 155410), (1420, 139869), (2130, 93246), (2556, 77705), (3195, 62164), (4260, 46623), (6390, 31082), (12780, 15541)]