25901820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 91535808

約数和(自身を除く): 65633988

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 305, 315, 337, 366, 420, 427, 549, 610, 630, 674, 732, 854, 915, 1011, 1098, 1220, 1260, 1281, 1348, 1685, 1708, 1830, 2022, 2135, 2196, 2359, 2562, 2745, 3033, 3370, 3660, 3843, 4044, 4270, 4718, 5055, 5124, 5490, 6066, 6405, 6740, 7077, 7686, 8540, 9436, 10110, 10980, 11795, 12132, 12810, 14154, 15165, 15372, 19215, 20220, 20557, 21231, 23590, 25620, 28308, 30330, 35385, 38430, 41114, 42462, 47180, 60660, 61671, 70770, 76860, 82228, 84924, 102785, 106155, 123342, 141540, 143899, 185013, 205570, 212310, 246684, 287798, 308355, 370026, 411140, 424620, 431697, 575596, 616710, 719495, 740052, 863394, 925065, 1233420, 1295091, 1438990, 1726788, 1850130, 2158485, 2590182, 2877980, 3700260, 4316970, 5180364, 6475455, 8633940, 12950910, 25901820]

約数ペア:

[(1, 25901820), (2, 12950910), (3, 8633940), (4, 6475455), (5, 5180364), (6, 4316970), (7, 3700260), (9, 2877980), (10, 2590182), (12, 2158485), (14, 1850130), (15, 1726788), (18, 1438990), (20, 1295091), (21, 1233420), (28, 925065), (30, 863394), (35, 740052), (36, 719495), (42, 616710), (45, 575596), (60, 431697), (61, 424620), (63, 411140), (70, 370026), (84, 308355), (90, 287798), (105, 246684), (122, 212310), (126, 205570), (140, 185013), (180, 143899), (183, 141540), (210, 123342), (244, 106155), (252, 102785), (305, 84924), (315, 82228), (337, 76860), (366, 70770), (420, 61671), (427, 60660), (549, 47180), (610, 42462), (630, 41114), (674, 38430), (732, 35385), (854, 30330), (915, 28308), (1011, 25620), (1098, 23590), (1220, 21231), (1260, 20557), (1281, 20220), (1348, 19215), (1685, 15372), (1708, 15165), (1830, 14154), (2022, 12810), (2135, 12132), (2196, 11795), (2359, 10980), (2562, 10110), (2745, 9436), (3033, 8540), (3370, 7686), (3660, 7077), (3843, 6740), (4044, 6405), (4270, 6066), (4718, 5490), (5055, 5124)]