31954390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 69128640

約数和(自身を除く): 37174250

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 170, 190, 221, 247, 323, 442, 494, 646, 761, 1105, 1235, 1522, 1615, 2210, 2470, 3230, 3805, 4199, 7610, 8398, 9893, 12937, 14459, 19786, 20995, 25874, 28918, 41990, 49465, 64685, 72295, 98930, 129370, 144590, 168181, 187967, 245803, 336362, 375934, 491606, 840905, 939835, 1229015, 1681810, 1879670, 2458030, 3195439, 6390878, 15977195, 31954390]

約数ペア:

[(1, 31954390), (2, 15977195), (5, 6390878), (10, 3195439), (13, 2458030), (17, 1879670), (19, 1681810), (26, 1229015), (34, 939835), (38, 840905), (65, 491606), (85, 375934), (95, 336362), (130, 245803), (170, 187967), (190, 168181), (221, 144590), (247, 129370), (323, 98930), (442, 72295), (494, 64685), (646, 49465), (761, 41990), (1105, 28918), (1235, 25874), (1522, 20995), (1615, 19786), (2210, 14459), (2470, 12937), (3230, 9893), (3805, 8398), (4199, 7610)]