278960010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{587}}^1$

素因数の和:708

約数の個数: 128

約数和(自身を含む): 802013184

約数和(自身を除く): 523053174

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 73, 93, 105, 146, 155, 186, 210, 217, 219, 310, 365, 434, 438, 465, 511, 587, 651, 730, 930, 1022, 1085, 1095, 1174, 1302, 1533, 1761, 2170, 2190, 2263, 2555, 2935, 3066, 3255, 3522, 4109, 4526, 5110, 5870, 6510, 6789, 7665, 8218, 8805, 11315, 12327, 13578, 15330, 15841, 17610, 18197, 20545, 22630, 24654, 31682, 33945, 36394, 41090, 42851, 47523, 54591, 61635, 67890, 79205, 85702, 90985, 95046, 109182, 123270, 127379, 128553, 158410, 181970, 214255, 237615, 254758, 257106, 272955, 299957, 382137, 428510, 475230, 545910, 599914, 636895, 642765, 764274, 899871, 1273790, 1285530, 1328381, 1499785, 1799742, 1910685, 2656762, 2999570, 3821370, 3985143, 4499355, 6641905, 7970286, 8998710, 9298667, 13283810, 18597334, 19925715, 27896001, 39851430, 46493335, 55792002, 92986670, 139480005, 278960010]

約数ペア:

[(1, 278960010), (2, 139480005), (3, 92986670), (5, 55792002), (6, 46493335), (7, 39851430), (10, 27896001), (14, 19925715), (15, 18597334), (21, 13283810), (30, 9298667), (31, 8998710), (35, 7970286), (42, 6641905), (62, 4499355), (70, 3985143), (73, 3821370), (93, 2999570), (105, 2656762), (146, 1910685), (155, 1799742), (186, 1499785), (210, 1328381), (217, 1285530), (219, 1273790), (310, 899871), (365, 764274), (434, 642765), (438, 636895), (465, 599914), (511, 545910), (587, 475230), (651, 428510), (730, 382137), (930, 299957), (1022, 272955), (1085, 257106), (1095, 254758), (1174, 237615), (1302, 214255), (1533, 181970), (1761, 158410), (2170, 128553), (2190, 127379), (2263, 123270), (2555, 109182), (2935, 95046), (3066, 90985), (3255, 85702), (3522, 79205), (4109, 67890), (4526, 61635), (5110, 54591), (5870, 47523), (6510, 42851), (6789, 41090), (7665, 36394), (8218, 33945), (8805, 31682), (11315, 24654), (12327, 22630), (13578, 20545), (15330, 18197), (15841, 17610)]