155221960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{829}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 363340800

約数和(自身を除く): 208118840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 151, 155, 248, 302, 310, 604, 620, 755, 829, 1208, 1240, 1510, 1658, 3020, 3316, 4145, 4681, 6040, 6632, 8290, 9362, 16580, 18724, 23405, 25699, 33160, 37448, 46810, 51398, 93620, 102796, 125179, 128495, 187240, 205592, 250358, 256990, 500716, 513980, 625895, 1001432, 1027960, 1251790, 2503580, 3880549, 5007160, 7761098, 15522196, 19402745, 31044392, 38805490, 77610980, 155221960]

約数ペア:

[(1, 155221960), (2, 77610980), (4, 38805490), (5, 31044392), (8, 19402745), (10, 15522196), (20, 7761098), (31, 5007160), (40, 3880549), (62, 2503580), (124, 1251790), (151, 1027960), (155, 1001432), (248, 625895), (302, 513980), (310, 500716), (604, 256990), (620, 250358), (755, 205592), (829, 187240), (1208, 128495), (1240, 125179), (1510, 102796), (1658, 93620), (3020, 51398), (3316, 46810), (4145, 37448), (4681, 33160), (6040, 25699), (6632, 23405), (8290, 18724), (9362, 16580)]