261400290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:336

約数の個数: 128

約数和(自身を含む): 698941440

約数和(自身を除く): 437541150

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 23, 30, 38, 46, 57, 69, 95, 114, 115, 127, 138, 157, 190, 230, 254, 285, 314, 345, 381, 437, 471, 570, 635, 690, 762, 785, 874, 942, 1270, 1311, 1570, 1905, 2185, 2355, 2413, 2622, 2921, 2983, 3611, 3810, 4370, 4710, 4826, 5842, 5966, 6555, 7222, 7239, 8763, 8949, 10833, 12065, 13110, 14478, 14605, 14915, 17526, 17898, 18055, 19939, 21666, 24130, 29210, 29830, 36110, 36195, 39878, 43815, 44745, 54165, 55499, 59817, 68609, 72390, 87630, 89490, 99695, 108330, 110998, 119634, 137218, 166497, 199390, 205827, 277495, 299085, 332994, 343045, 378841, 411654, 458597, 554990, 598170, 686090, 757682, 832485, 917194, 1029135, 1136523, 1375791, 1664970, 1894205, 2058270, 2273046, 2292985, 2751582, 3788410, 4585970, 5682615, 6878955, 8713343, 11365230, 13757910, 17426686, 26140029, 43566715, 52280058, 87133430, 130700145, 261400290]

約数ペア:

[(1, 261400290), (2, 130700145), (3, 87133430), (5, 52280058), (6, 43566715), (10, 26140029), (15, 17426686), (19, 13757910), (23, 11365230), (30, 8713343), (38, 6878955), (46, 5682615), (57, 4585970), (69, 3788410), (95, 2751582), (114, 2292985), (115, 2273046), (127, 2058270), (138, 1894205), (157, 1664970), (190, 1375791), (230, 1136523), (254, 1029135), (285, 917194), (314, 832485), (345, 757682), (381, 686090), (437, 598170), (471, 554990), (570, 458597), (635, 411654), (690, 378841), (762, 343045), (785, 332994), (874, 299085), (942, 277495), (1270, 205827), (1311, 199390), (1570, 166497), (1905, 137218), (2185, 119634), (2355, 110998), (2413, 108330), (2622, 99695), (2921, 89490), (2983, 87630), (3611, 72390), (3810, 68609), (4370, 59817), (4710, 55499), (4826, 54165), (5842, 44745), (5966, 43815), (6555, 39878), (7222, 36195), (7239, 36110), (8763, 29830), (8949, 29210), (10833, 24130), (12065, 21666), (13110, 19939), (14478, 18055), (14605, 17898), (14915, 17526)]