19530840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23251}}^1$

素因数の和:23272

約数の個数: 64

約数和(自身を含む): 66965760

約数和(自身を除く): 47434920

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, 23251, 46502, 69753, 93004, 116255, 139506, 162757, 186008, 232510, 279012, 325514, 348765, 465020, 488271, 558024, 651028, 697530, 813785, 930040, 976542, 1302056, 1395060, 1627570, 1953084, 2441355, 2790120, 3255140, 3906168, 4882710, 6510280, 9765420, 19530840]

約数ペア:

[(1, 19530840), (2, 9765420), (3, 6510280), (4, 4882710), (5, 3906168), (6, 3255140), (7, 2790120), (8, 2441355), (10, 1953084), (12, 1627570), (14, 1395060), (15, 1302056), (20, 976542), (21, 930040), (24, 813785), (28, 697530), (30, 651028), (35, 558024), (40, 488271), (42, 465020), (56, 348765), (60, 325514), (70, 279012), (84, 232510), (105, 186008), (120, 162757), (140, 139506), (168, 116255), (210, 93004), (280, 69753), (420, 46502), (840, 23251)]