216355720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9781}}^1$

素因数の和:9878

約数の個数: 64

約数和(自身を含む): 563443200

約数和(自身を除く): 347087480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1580, 2212, 2765, 3160, 4424, 5530, 9781, 11060, 19562, 22120, 39124, 48905, 68467, 78248, 97810, 136934, 195620, 273868, 342335, 391240, 547736, 684670, 772699, 1369340, 1545398, 2738680, 3090796, 3863495, 5408893, 6181592, 7726990, 10817786, 15453980, 21635572, 27044465, 30907960, 43271144, 54088930, 108177860, 216355720]

約数ペア:

[(1, 216355720), (2, 108177860), (4, 54088930), (5, 43271144), (7, 30907960), (8, 27044465), (10, 21635572), (14, 15453980), (20, 10817786), (28, 7726990), (35, 6181592), (40, 5408893), (56, 3863495), (70, 3090796), (79, 2738680), (140, 1545398), (158, 1369340), (280, 772699), (316, 684670), (395, 547736), (553, 391240), (632, 342335), (790, 273868), (1106, 195620), (1580, 136934), (2212, 97810), (2765, 78248), (3160, 68467), (4424, 48905), (5530, 39124), (9781, 22120), (11060, 19562)]