213218449780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1\times {\mathrm{16747}}^1$

素因数の和:17405

約数の個数: 96

約数和(自身を含む): 515373207552

約数和(自身を除く): 302154757772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 431, 844, 862, 1055, 1477, 1724, 2110, 2155, 2954, 3017, 4220, 4310, 5908, 6034, 7385, 8620, 12068, 14770, 15085, 16747, 29540, 30170, 33494, 60340, 66988, 83735, 90941, 117229, 167470, 181882, 234458, 334940, 363764, 454705, 468916, 586145, 636587, 909410, 1172290, 1273174, 1818820, 2344580, 2546348, 3182935, 3533617, 6365870, 7067234, 7217957, 12731740, 14134468, 14435914, 17668085, 24735319, 28871828, 35336170, 36089785, 49470638, 50525699, 70672340, 72179570, 98941276, 101051398, 123676595, 144359140, 202102796, 247353190, 252628495, 494706380, 505256990, 1010513980, 1522988927, 3045977854, 6091955708, 7614944635, 10660922489, 15229889270, 21321844978, 30459778540, 42643689956, 53304612445, 106609224890, 213218449780]

約数ペア:

[(1, 213218449780), (2, 106609224890), (4, 53304612445), (5, 42643689956), (7, 30459778540), (10, 21321844978), (14, 15229889270), (20, 10660922489), (28, 7614944635), (35, 6091955708), (70, 3045977854), (140, 1522988927), (211, 1010513980), (422, 505256990), (431, 494706380), (844, 252628495), (862, 247353190), (1055, 202102796), (1477, 144359140), (1724, 123676595), (2110, 101051398), (2155, 98941276), (2954, 72179570), (3017, 70672340), (4220, 50525699), (4310, 49470638), (5908, 36089785), (6034, 35336170), (7385, 28871828), (8620, 24735319), (12068, 17668085), (14770, 14435914), (15085, 14134468), (16747, 12731740), (29540, 7217957), (30170, 7067234), (33494, 6365870), (60340, 3533617), (66988, 3182935), (83735, 2546348), (90941, 2344580), (117229, 1818820), (167470, 1273174), (181882, 1172290), (234458, 909410), (334940, 636587), (363764, 586145), (454705, 468916)]