172378920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{205213}}^1$

素因数の和:205234

約数の個数: 64

約数和(自身を含む): 591016320

約数和(自身を除く): 418637400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 205213, 410426, 615639, 820852, 1026065, 1231278, 1436491, 1641704, 2052130, 2462556, 2872982, 3078195, 4104260, 4309473, 4925112, 5745964, 6156390, 7182455, 8208520, 8618946, 11491928, 12312780, 14364910, 17237892, 21547365, 24625560, 28729820, 34475784, 43094730, 57459640, 86189460, 172378920]

約数ペア:

[(1, 172378920), (2, 86189460), (3, 57459640), (4, 43094730), (5, 34475784), (6, 28729820), (7, 24625560), (8, 21547365), (10, 17237892), (12, 14364910), (14, 12312780), (15, 11491928), (20, 8618946), (21, 8208520), (24, 7182455), (28, 6156390), (30, 5745964), (35, 4925112), (40, 4309473), (42, 4104260), (56, 3078195), (60, 2872982), (70, 2462556), (84, 2052130), (105, 1641704), (120, 1436491), (140, 1231278), (168, 1026065), (210, 820852), (280, 615639), (420, 410426), (840, 205213)]