64643460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{153913}}^1$

素因数の和:153932

約数の個数: 48

約数和(自身を含む): 206860416

約数和(自身を除く): 142216956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 153913, 307826, 461739, 615652, 769565, 923478, 1077391, 1539130, 1846956, 2154782, 2308695, 3078260, 3232173, 4309564, 4617390, 5386955, 6464346, 9234780, 10773910, 12928692, 16160865, 21547820, 32321730, 64643460]

約数ペア:

[(1, 64643460), (2, 32321730), (3, 21547820), (4, 16160865), (5, 12928692), (6, 10773910), (7, 9234780), (10, 6464346), (12, 5386955), (14, 4617390), (15, 4309564), (20, 3232173), (21, 3078260), (28, 2308695), (30, 2154782), (35, 1846956), (42, 1539130), (60, 1077391), (70, 923478), (84, 769565), (105, 615652), (140, 461739), (210, 307826), (420, 153913)]