164920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:68

約数の個数: 64

約数和(自身を含む): 460800

約数和(自身を除く): 295880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 95, 124, 133, 140, 152, 155, 190, 217, 248, 266, 280, 310, 380, 434, 532, 589, 620, 665, 760, 868, 1064, 1085, 1178, 1240, 1330, 1736, 2170, 2356, 2660, 2945, 4123, 4340, 4712, 5320, 5890, 8246, 8680, 11780, 16492, 20615, 23560, 32984, 41230, 82460, 164920]

約数ペア:

[(1, 164920), (2, 82460), (4, 41230), (5, 32984), (7, 23560), (8, 20615), (10, 16492), (14, 11780), (19, 8680), (20, 8246), (28, 5890), (31, 5320), (35, 4712), (38, 4340), (40, 4123), (56, 2945), (62, 2660), (70, 2356), (76, 2170), (95, 1736), (124, 1330), (133, 1240), (140, 1178), (152, 1085), (155, 1064), (190, 868), (217, 760), (248, 665), (266, 620), (280, 589), (310, 532), (380, 434)]