312521540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:405

約数の個数: 96

約数和(自身を含む): 725760000

約数和(自身を除く): 413238460

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 149, 155, 170, 199, 298, 310, 340, 398, 527, 596, 620, 745, 796, 995, 1054, 1490, 1990, 2108, 2533, 2635, 2980, 3383, 3980, 4619, 5066, 5270, 6169, 6766, 9238, 10132, 10540, 12338, 12665, 13532, 16915, 18476, 23095, 24676, 25330, 29651, 30845, 33830, 46190, 50660, 59302, 61690, 67660, 78523, 92380, 104873, 118604, 123380, 148255, 157046, 209746, 296510, 314092, 392615, 419492, 504067, 524365, 593020, 785230, 919181, 1008134, 1048730, 1570460, 1838362, 2016268, 2097460, 2520335, 3676724, 4595905, 5040670, 9191810, 10081340, 15626077, 18383620, 31252154, 62504308, 78130385, 156260770, 312521540]

約数ペア:

[(1, 312521540), (2, 156260770), (4, 78130385), (5, 62504308), (10, 31252154), (17, 18383620), (20, 15626077), (31, 10081340), (34, 9191810), (62, 5040670), (68, 4595905), (85, 3676724), (124, 2520335), (149, 2097460), (155, 2016268), (170, 1838362), (199, 1570460), (298, 1048730), (310, 1008134), (340, 919181), (398, 785230), (527, 593020), (596, 524365), (620, 504067), (745, 419492), (796, 392615), (995, 314092), (1054, 296510), (1490, 209746), (1990, 157046), (2108, 148255), (2533, 123380), (2635, 118604), (2980, 104873), (3383, 92380), (3980, 78523), (4619, 67660), (5066, 61690), (5270, 59302), (6169, 50660), (6766, 46190), (9238, 33830), (10132, 30845), (10540, 29651), (12338, 25330), (12665, 24676), (13532, 23095), (16915, 18476)]