27865720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1024

約数の個数: 64

約数和(自身を含む): 68001120

約数和(自身を除く): 40135400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 953, 1462, 1720, 1906, 2924, 3655, 3812, 4765, 5848, 7310, 7624, 9530, 14620, 16201, 19060, 29240, 32402, 38120, 40979, 64804, 81005, 81958, 129608, 162010, 163916, 204895, 324020, 327832, 409790, 648040, 696643, 819580, 1393286, 1639160, 2786572, 3483215, 5573144, 6966430, 13932860, 27865720]

約数ペア:

[(1, 27865720), (2, 13932860), (4, 6966430), (5, 5573144), (8, 3483215), (10, 2786572), (17, 1639160), (20, 1393286), (34, 819580), (40, 696643), (43, 648040), (68, 409790), (85, 327832), (86, 324020), (136, 204895), (170, 163916), (172, 162010), (215, 129608), (340, 81958), (344, 81005), (430, 64804), (680, 40979), (731, 38120), (860, 32402), (953, 29240), (1462, 19060), (1720, 16201), (1906, 14620), (2924, 9530), (3655, 7624), (3812, 7310), (4765, 5848)]