420658840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{48463}}^1$

素因数の和:48512

約数の個数: 64

約数和(自身を含む): 1116610560

約数和(自身を除く): 695951720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 48463, 96926, 193852, 242315, 339241, 387704, 484630, 678482, 969260, 1356964, 1502353, 1696205, 1938520, 2713928, 3004706, 3392410, 6009412, 6784820, 7511765, 10516471, 12018824, 13569640, 15023530, 21032942, 30047060, 42065884, 52582355, 60094120, 84131768, 105164710, 210329420, 420658840]

約数ペア:

[(1, 420658840), (2, 210329420), (4, 105164710), (5, 84131768), (7, 60094120), (8, 52582355), (10, 42065884), (14, 30047060), (20, 21032942), (28, 15023530), (31, 13569640), (35, 12018824), (40, 10516471), (56, 7511765), (62, 6784820), (70, 6009412), (124, 3392410), (140, 3004706), (155, 2713928), (217, 1938520), (248, 1696205), (280, 1502353), (310, 1356964), (434, 969260), (620, 678482), (868, 484630), (1085, 387704), (1240, 339241), (1736, 242315), (2170, 193852), (4340, 96926), (8680, 48463)]