31500340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 72801792

約数和(自身を除く): 41301452

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 47, 62, 92, 94, 115, 124, 155, 188, 230, 235, 310, 460, 470, 620, 713, 940, 1081, 1426, 1457, 2162, 2209, 2852, 2914, 3565, 4324, 4418, 5405, 5828, 7130, 7285, 8836, 10810, 11045, 14260, 14570, 21620, 22090, 29140, 33511, 44180, 50807, 67022, 68479, 101614, 134044, 136958, 167555, 203228, 254035, 273916, 335110, 342395, 508070, 670220, 684790, 1016140, 1369580, 1575017, 3150034, 6300068, 7875085, 15750170, 31500340]

約数ペア:

[(1, 31500340), (2, 15750170), (4, 7875085), (5, 6300068), (10, 3150034), (20, 1575017), (23, 1369580), (31, 1016140), (46, 684790), (47, 670220), (62, 508070), (92, 342395), (94, 335110), (115, 273916), (124, 254035), (155, 203228), (188, 167555), (230, 136958), (235, 134044), (310, 101614), (460, 68479), (470, 67022), (620, 50807), (713, 44180), (940, 33511), (1081, 29140), (1426, 22090), (1457, 21620), (2162, 14570), (2209, 14260), (2852, 11045), (2914, 10810), (3565, 8836), (4324, 7285), (4418, 7130), (5405, 5828)]