20329890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{739}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 56263680

約数和(自身を除く): 35933790

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 131, 210, 262, 393, 655, 739, 786, 917, 1310, 1478, 1834, 1965, 2217, 2751, 3695, 3930, 4434, 4585, 5173, 5502, 7390, 9170, 10346, 11085, 13755, 15519, 22170, 25865, 27510, 31038, 51730, 77595, 96809, 155190, 193618, 290427, 484045, 580854, 677663, 968090, 1355326, 1452135, 2032989, 2904270, 3388315, 4065978, 6776630, 10164945, 20329890]

約数ペア:

[(1, 20329890), (2, 10164945), (3, 6776630), (5, 4065978), (6, 3388315), (7, 2904270), (10, 2032989), (14, 1452135), (15, 1355326), (21, 968090), (30, 677663), (35, 580854), (42, 484045), (70, 290427), (105, 193618), (131, 155190), (210, 96809), (262, 77595), (393, 51730), (655, 31038), (739, 27510), (786, 25865), (917, 22170), (1310, 15519), (1478, 13755), (1834, 11085), (1965, 10346), (2217, 9170), (2751, 7390), (3695, 5502), (3930, 5173), (4434, 4585)]