157706920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18169}}^1$

素因数の和:18218

約数の個数: 64

約数和(自身を含む): 418636800

約数和(自身を除く): 260929880

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, 18169, 36338, 72676, 90845, 127183, 145352, 181690, 254366, 363380, 508732, 563239, 635915, 726760, 1017464, 1126478, 1271830, 2252956, 2543660, 2816195, 3942673, 4505912, 5087320, 5632390, 7885346, 11264780, 15770692, 19713365, 22529560, 31541384, 39426730, 78853460, 157706920]

約数ペア:

[(1, 157706920), (2, 78853460), (4, 39426730), (5, 31541384), (7, 22529560), (8, 19713365), (10, 15770692), (14, 11264780), (20, 7885346), (28, 5632390), (31, 5087320), (35, 4505912), (40, 3942673), (56, 2816195), (62, 2543660), (70, 2252956), (124, 1271830), (140, 1126478), (155, 1017464), (217, 726760), (248, 635915), (280, 563239), (310, 508732), (434, 363380), (620, 254366), (868, 181690), (1085, 145352), (1240, 127183), (1736, 90845), (2170, 72676), (4340, 36338), (8680, 18169)]