128437960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{14797}}^1$

素因数の和:14846

約数の個数: 64

約数和(自身を含む): 340945920

約数和(自身を除く): 212507960

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, 14797, 29594, 59188, 73985, 103579, 118376, 147970, 207158, 295940, 414316, 458707, 517895, 591880, 828632, 917414, 1035790, 1834828, 2071580, 2293535, 3210949, 3669656, 4143160, 4587070, 6421898, 9174140, 12843796, 16054745, 18348280, 25687592, 32109490, 64218980, 128437960]

約数ペア:

[(1, 128437960), (2, 64218980), (4, 32109490), (5, 25687592), (7, 18348280), (8, 16054745), (10, 12843796), (14, 9174140), (20, 6421898), (28, 4587070), (31, 4143160), (35, 3669656), (40, 3210949), (56, 2293535), (62, 2071580), (70, 1834828), (124, 1035790), (140, 917414), (155, 828632), (217, 591880), (248, 517895), (280, 458707), (310, 414316), (434, 295940), (620, 207158), (868, 147970), (1085, 118376), (1240, 103579), (1736, 73985), (2170, 59188), (4340, 29594), (8680, 14797)]