8440180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{167}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 21506688

約数和(自身を除く): 13066508

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 167, 190, 266, 334, 361, 380, 532, 665, 668, 722, 835, 1169, 1330, 1444, 1670, 1805, 2338, 2527, 2660, 3173, 3340, 3610, 4676, 5054, 5845, 6346, 7220, 10108, 11690, 12635, 12692, 15865, 22211, 23380, 25270, 31730, 44422, 50540, 60287, 63460, 88844, 111055, 120574, 222110, 241148, 301435, 422009, 444220, 602870, 844018, 1205740, 1688036, 2110045, 4220090, 8440180]

約数ペア:

[(1, 8440180), (2, 4220090), (4, 2110045), (5, 1688036), (7, 1205740), (10, 844018), (14, 602870), (19, 444220), (20, 422009), (28, 301435), (35, 241148), (38, 222110), (70, 120574), (76, 111055), (95, 88844), (133, 63460), (140, 60287), (167, 50540), (190, 44422), (266, 31730), (334, 25270), (361, 23380), (380, 22211), (532, 15865), (665, 12692), (668, 12635), (722, 11690), (835, 10108), (1169, 7220), (1330, 6346), (1444, 5845), (1670, 5054), (1805, 4676), (2338, 3610), (2527, 3340), (2660, 3173)]