31373840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 82226880

約数和(自身を除く): 50853040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 59, 68, 80, 85, 92, 115, 118, 136, 170, 184, 230, 236, 272, 289, 295, 340, 368, 391, 460, 472, 578, 590, 680, 782, 920, 944, 1003, 1156, 1180, 1357, 1360, 1445, 1564, 1840, 1955, 2006, 2312, 2360, 2714, 2890, 3128, 3910, 4012, 4624, 4720, 5015, 5428, 5780, 6256, 6647, 6785, 7820, 8024, 10030, 10856, 11560, 13294, 13570, 15640, 16048, 17051, 20060, 21712, 23069, 23120, 26588, 27140, 31280, 33235, 34102, 40120, 46138, 53176, 54280, 66470, 68204, 80240, 85255, 92276, 106352, 108560, 115345, 132940, 136408, 170510, 184552, 230690, 265880, 272816, 341020, 369104, 392173, 461380, 531760, 682040, 784346, 922760, 1364080, 1568692, 1845520, 1960865, 3137384, 3921730, 6274768, 7843460, 15686920, 31373840]

約数ペア:

[(1, 31373840), (2, 15686920), (4, 7843460), (5, 6274768), (8, 3921730), (10, 3137384), (16, 1960865), (17, 1845520), (20, 1568692), (23, 1364080), (34, 922760), (40, 784346), (46, 682040), (59, 531760), (68, 461380), (80, 392173), (85, 369104), (92, 341020), (115, 272816), (118, 265880), (136, 230690), (170, 184552), (184, 170510), (230, 136408), (236, 132940), (272, 115345), (289, 108560), (295, 106352), (340, 92276), (368, 85255), (391, 80240), (460, 68204), (472, 66470), (578, 54280), (590, 53176), (680, 46138), (782, 40120), (920, 34102), (944, 33235), (1003, 31280), (1156, 27140), (1180, 26588), (1357, 23120), (1360, 23069), (1445, 21712), (1564, 20060), (1840, 17051), (1955, 16048), (2006, 15640), (2312, 13570), (2360, 13294), (2714, 11560), (2890, 10856), (3128, 10030), (3910, 8024), (4012, 7820), (4624, 6785), (4720, 6647), (5015, 6256), (5428, 5780)]