401371880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3557}}^1$

素因数の和:3619

約数の個数: 128

約数和(自身を含む): 1147668480

約数和(自身を除く): 746296600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 2015, 2170, 2821, 3224, 3557, 3640, 4030, 4340, 5642, 7114, 8060, 8680, 11284, 14105, 14228, 16120, 17785, 22568, 24899, 28210, 28456, 35570, 46241, 49798, 56420, 71140, 92482, 99596, 110267, 112840, 124495, 142280, 184964, 199192, 220534, 231205, 248990, 323687, 369928, 441068, 462410, 497980, 551335, 647374, 771869, 882136, 924820, 995960, 1102670, 1294748, 1433471, 1543738, 1618435, 1849640, 2205340, 2589496, 2866942, 3087476, 3236870, 3859345, 4410680, 5733884, 6174952, 6473740, 7167355, 7718690, 10034297, 11467768, 12947480, 14334710, 15437380, 20068594, 28669420, 30874760, 40137188, 50171485, 57338840, 80274376, 100342970, 200685940, 401371880]

約数ペア:

[(1, 401371880), (2, 200685940), (4, 100342970), (5, 80274376), (7, 57338840), (8, 50171485), (10, 40137188), (13, 30874760), (14, 28669420), (20, 20068594), (26, 15437380), (28, 14334710), (31, 12947480), (35, 11467768), (40, 10034297), (52, 7718690), (56, 7167355), (62, 6473740), (65, 6174952), (70, 5733884), (91, 4410680), (104, 3859345), (124, 3236870), (130, 3087476), (140, 2866942), (155, 2589496), (182, 2205340), (217, 1849640), (248, 1618435), (260, 1543738), (280, 1433471), (310, 1294748), (364, 1102670), (403, 995960), (434, 924820), (455, 882136), (520, 771869), (620, 647374), (728, 551335), (806, 497980), (868, 462410), (910, 441068), (1085, 369928), (1240, 323687), (1612, 248990), (1736, 231205), (1820, 220534), (2015, 199192), (2170, 184964), (2821, 142280), (3224, 124495), (3557, 112840), (3640, 110267), (4030, 99596), (4340, 92482), (5642, 71140), (7114, 56420), (8060, 49798), (8680, 46241), (11284, 35570), (14105, 28456), (14228, 28210), (16120, 24899), (17785, 22568)]