217872650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 447828480

約数和(自身を除く): 229955830

約数列:

[1, 2, 5, 10, 25, 29, 31, 37, 50, 58, 62, 74, 131, 145, 155, 185, 262, 290, 310, 370, 655, 725, 775, 899, 925, 1073, 1147, 1310, 1450, 1550, 1798, 1850, 2146, 2294, 3275, 3799, 4061, 4495, 4847, 5365, 5735, 6550, 7598, 8122, 8990, 9694, 10730, 11470, 18995, 20305, 22475, 24235, 26825, 28675, 33263, 37990, 40610, 44950, 48470, 53650, 57350, 66526, 94975, 101525, 117769, 121175, 140563, 150257, 166315, 189950, 203050, 235538, 242350, 281126, 300514, 332630, 588845, 702815, 751285, 831575, 1177690, 1405630, 1502570, 1663150, 2944225, 3514075, 3756425, 4357453, 5888450, 7028150, 7512850, 8714906, 21787265, 43574530, 108936325, 217872650]

約数ペア:

[(1, 217872650), (2, 108936325), (5, 43574530), (10, 21787265), (25, 8714906), (29, 7512850), (31, 7028150), (37, 5888450), (50, 4357453), (58, 3756425), (62, 3514075), (74, 2944225), (131, 1663150), (145, 1502570), (155, 1405630), (185, 1177690), (262, 831575), (290, 751285), (310, 702815), (370, 588845), (655, 332630), (725, 300514), (775, 281126), (899, 242350), (925, 235538), (1073, 203050), (1147, 189950), (1310, 166315), (1450, 150257), (1550, 140563), (1798, 121175), (1850, 117769), (2146, 101525), (2294, 94975), (3275, 66526), (3799, 57350), (4061, 53650), (4495, 48470), (4847, 44950), (5365, 40610), (5735, 37990), (6550, 33263), (7598, 28675), (8122, 26825), (8990, 24235), (9694, 22475), (10730, 20305), (11470, 18995)]