86740780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1451}}^1$

素因数の和:1535

約数の個数: 72

約数和(自身を含む): 215517456

約数和(自身を除く): 128776676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1220, 1451, 1708, 2135, 2902, 2989, 4270, 5804, 5978, 7255, 8540, 10157, 11956, 14510, 14945, 20314, 29020, 29890, 40628, 50785, 59780, 71099, 88511, 101570, 142198, 177022, 203140, 284396, 354044, 355495, 442555, 619577, 710990, 885110, 1239154, 1421980, 1770220, 2478308, 3097885, 4337039, 6195770, 8674078, 12391540, 17348156, 21685195, 43370390, 86740780]

約数ペア:

[(1, 86740780), (2, 43370390), (4, 21685195), (5, 17348156), (7, 12391540), (10, 8674078), (14, 6195770), (20, 4337039), (28, 3097885), (35, 2478308), (49, 1770220), (61, 1421980), (70, 1239154), (98, 885110), (122, 710990), (140, 619577), (196, 442555), (244, 355495), (245, 354044), (305, 284396), (427, 203140), (490, 177022), (610, 142198), (854, 101570), (980, 88511), (1220, 71099), (1451, 59780), (1708, 50785), (2135, 40628), (2902, 29890), (2989, 29020), (4270, 20314), (5804, 14945), (5978, 14510), (7255, 11956), (8540, 10157)]