19389720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:625

約数の個数: 128

約数和(自身を含む): 68221440

約数和(自身を除く): 48831720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 492, 563, 574, 615, 820, 840, 861, 984, 1126, 1148, 1230, 1435, 1640, 1689, 1722, 2252, 2296, 2460, 2815, 2870, 3378, 3444, 3941, 4305, 4504, 4920, 5630, 5740, 6756, 6888, 7882, 8445, 8610, 11260, 11480, 11823, 13512, 15764, 16890, 17220, 19705, 22520, 23083, 23646, 31528, 33780, 34440, 39410, 46166, 47292, 59115, 67560, 69249, 78820, 92332, 94584, 115415, 118230, 138498, 157640, 161581, 184664, 230830, 236460, 276996, 323162, 346245, 461660, 472920, 484743, 553992, 646324, 692490, 807905, 923320, 969486, 1292648, 1384980, 1615810, 1938972, 2423715, 2769960, 3231620, 3877944, 4847430, 6463240, 9694860, 19389720]

約数ペア:

[(1, 19389720), (2, 9694860), (3, 6463240), (4, 4847430), (5, 3877944), (6, 3231620), (7, 2769960), (8, 2423715), (10, 1938972), (12, 1615810), (14, 1384980), (15, 1292648), (20, 969486), (21, 923320), (24, 807905), (28, 692490), (30, 646324), (35, 553992), (40, 484743), (41, 472920), (42, 461660), (56, 346245), (60, 323162), (70, 276996), (82, 236460), (84, 230830), (105, 184664), (120, 161581), (123, 157640), (140, 138498), (164, 118230), (168, 115415), (205, 94584), (210, 92332), (246, 78820), (280, 69249), (287, 67560), (328, 59115), (410, 47292), (420, 46166), (492, 39410), (563, 34440), (574, 33780), (615, 31528), (820, 23646), (840, 23083), (861, 22520), (984, 19705), (1126, 17220), (1148, 16890), (1230, 15764), (1435, 13512), (1640, 11823), (1689, 11480), (1722, 11260), (2252, 8610), (2296, 8445), (2460, 7882), (2815, 6888), (2870, 6756), (3378, 5740), (3444, 5630), (3941, 4920), (4305, 4504)]