28268520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:555

約数の個数: 128

約数和(自身を含む): 98461440

約数和(自身を除く): 70192920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 73, 84, 105, 120, 140, 146, 168, 210, 219, 280, 292, 365, 420, 438, 461, 511, 584, 730, 840, 876, 922, 1022, 1095, 1383, 1460, 1533, 1752, 1844, 2044, 2190, 2305, 2555, 2766, 2920, 3066, 3227, 3688, 4088, 4380, 4610, 5110, 5532, 6132, 6454, 6915, 7665, 8760, 9220, 9681, 10220, 11064, 12264, 12908, 13830, 15330, 16135, 18440, 19362, 20440, 25816, 27660, 30660, 32270, 33653, 38724, 48405, 55320, 61320, 64540, 67306, 77448, 96810, 100959, 129080, 134612, 168265, 193620, 201918, 235571, 269224, 336530, 387240, 403836, 471142, 504795, 673060, 706713, 807672, 942284, 1009590, 1177855, 1346120, 1413426, 1884568, 2019180, 2355710, 2826852, 3533565, 4038360, 4711420, 5653704, 7067130, 9422840, 14134260, 28268520]

約数ペア:

[(1, 28268520), (2, 14134260), (3, 9422840), (4, 7067130), (5, 5653704), (6, 4711420), (7, 4038360), (8, 3533565), (10, 2826852), (12, 2355710), (14, 2019180), (15, 1884568), (20, 1413426), (21, 1346120), (24, 1177855), (28, 1009590), (30, 942284), (35, 807672), (40, 706713), (42, 673060), (56, 504795), (60, 471142), (70, 403836), (73, 387240), (84, 336530), (105, 269224), (120, 235571), (140, 201918), (146, 193620), (168, 168265), (210, 134612), (219, 129080), (280, 100959), (292, 96810), (365, 77448), (420, 67306), (438, 64540), (461, 61320), (511, 55320), (584, 48405), (730, 38724), (840, 33653), (876, 32270), (922, 30660), (1022, 27660), (1095, 25816), (1383, 20440), (1460, 19362), (1533, 18440), (1752, 16135), (1844, 15330), (2044, 13830), (2190, 12908), (2305, 12264), (2555, 11064), (2766, 10220), (2920, 9681), (3066, 9220), (3227, 8760), (3688, 7665), (4088, 6915), (4380, 6454), (4610, 6132), (5110, 5532)]