20702977220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{813157}}^1$

素因数の和:813252

約数の個数: 48

約数和(自身を含む): 46447584960

約数和(自身を除く): 25744607740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1273, 1340, 2546, 5092, 6365, 12730, 25460, 813157, 1626314, 3252628, 4065785, 8131570, 15449983, 16263140, 30899966, 54481519, 61799932, 77249915, 108963038, 154499830, 217926076, 272407595, 308999660, 544815190, 1035148861, 1089630380, 2070297722, 4140595444, 5175744305, 10351488610, 20702977220]

約数ペア:

[(1, 20702977220), (2, 10351488610), (4, 5175744305), (5, 4140595444), (10, 2070297722), (19, 1089630380), (20, 1035148861), (38, 544815190), (67, 308999660), (76, 272407595), (95, 217926076), (134, 154499830), (190, 108963038), (268, 77249915), (335, 61799932), (380, 54481519), (670, 30899966), (1273, 16263140), (1340, 15449983), (2546, 8131570), (5092, 4065785), (6365, 3252628), (12730, 1626314), (25460, 813157)]