20497464

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 60933600

約数和(自身を除く): 40436136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 61, 72, 78, 104, 117, 122, 156, 183, 234, 244, 312, 359, 366, 468, 488, 549, 718, 732, 793, 936, 1077, 1098, 1436, 1464, 1586, 2154, 2196, 2379, 2872, 3172, 3231, 4308, 4392, 4667, 4758, 6344, 6462, 7137, 8616, 9334, 9516, 12924, 14001, 14274, 18668, 19032, 21899, 25848, 28002, 28548, 37336, 42003, 43798, 56004, 57096, 65697, 84006, 87596, 112008, 131394, 168012, 175192, 197091, 262788, 284687, 336024, 394182, 525576, 569374, 788364, 854061, 1138748, 1576728, 1708122, 2277496, 2562183, 3416244, 5124366, 6832488, 10248732, 20497464]

約数ペア:

[(1, 20497464), (2, 10248732), (3, 6832488), (4, 5124366), (6, 3416244), (8, 2562183), (9, 2277496), (12, 1708122), (13, 1576728), (18, 1138748), (24, 854061), (26, 788364), (36, 569374), (39, 525576), (52, 394182), (61, 336024), (72, 284687), (78, 262788), (104, 197091), (117, 175192), (122, 168012), (156, 131394), (183, 112008), (234, 87596), (244, 84006), (312, 65697), (359, 57096), (366, 56004), (468, 43798), (488, 42003), (549, 37336), (718, 28548), (732, 28002), (793, 25848), (936, 21899), (1077, 19032), (1098, 18668), (1436, 14274), (1464, 14001), (1586, 12924), (2154, 9516), (2196, 9334), (2379, 8616), (2872, 7137), (3172, 6462), (3231, 6344), (4308, 4758), (4392, 4667)]