19378920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 64851840

約数和(自身を除く): 45472920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 53, 55, 60, 66, 88, 106, 110, 120, 132, 159, 165, 212, 220, 264, 265, 277, 318, 330, 424, 440, 530, 554, 583, 636, 660, 795, 831, 1060, 1108, 1166, 1272, 1320, 1385, 1590, 1662, 1749, 2120, 2216, 2332, 2770, 2915, 3047, 3180, 3324, 3498, 4155, 4664, 5540, 5830, 6094, 6360, 6648, 6996, 8310, 8745, 9141, 11080, 11660, 12188, 13992, 14681, 15235, 16620, 17490, 18282, 23320, 24376, 29362, 30470, 33240, 34980, 36564, 44043, 45705, 58724, 60940, 69960, 73128, 73405, 88086, 91410, 117448, 121880, 146810, 161491, 176172, 182820, 220215, 293620, 322982, 352344, 365640, 440430, 484473, 587240, 645964, 807455, 880860, 968946, 1291928, 1614910, 1761720, 1937892, 2422365, 3229820, 3875784, 4844730, 6459640, 9689460, 19378920]

約数ペア:

[(1, 19378920), (2, 9689460), (3, 6459640), (4, 4844730), (5, 3875784), (6, 3229820), (8, 2422365), (10, 1937892), (11, 1761720), (12, 1614910), (15, 1291928), (20, 968946), (22, 880860), (24, 807455), (30, 645964), (33, 587240), (40, 484473), (44, 440430), (53, 365640), (55, 352344), (60, 322982), (66, 293620), (88, 220215), (106, 182820), (110, 176172), (120, 161491), (132, 146810), (159, 121880), (165, 117448), (212, 91410), (220, 88086), (264, 73405), (265, 73128), (277, 69960), (318, 60940), (330, 58724), (424, 45705), (440, 44043), (530, 36564), (554, 34980), (583, 33240), (636, 30470), (660, 29362), (795, 24376), (831, 23320), (1060, 18282), (1108, 17490), (1166, 16620), (1272, 15235), (1320, 14681), (1385, 13992), (1590, 12188), (1662, 11660), (1749, 11080), (2120, 9141), (2216, 8745), (2332, 8310), (2770, 6996), (2915, 6648), (3047, 6360), (3180, 6094), (3324, 5830), (3498, 5540), (4155, 4664)]