20195700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 68328960

約数和(自身を除く): 48133260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 59, 60, 70, 75, 84, 100, 105, 118, 140, 150, 163, 175, 177, 210, 236, 295, 300, 326, 350, 354, 413, 420, 489, 525, 590, 652, 700, 708, 815, 826, 885, 978, 1050, 1141, 1180, 1239, 1475, 1630, 1652, 1770, 1956, 2065, 2100, 2282, 2445, 2478, 2950, 3260, 3423, 3540, 4075, 4130, 4425, 4564, 4890, 4956, 5705, 5900, 6195, 6846, 8150, 8260, 8850, 9617, 9780, 10325, 11410, 12225, 12390, 13692, 16300, 17115, 17700, 19234, 20650, 22820, 24450, 24780, 28525, 28851, 30975, 34230, 38468, 41300, 48085, 48900, 57050, 57702, 61950, 67319, 68460, 85575, 96170, 114100, 115404, 123900, 134638, 144255, 171150, 192340, 201957, 240425, 269276, 288510, 336595, 342300, 403914, 480850, 577020, 673190, 721275, 807828, 961700, 1009785, 1346380, 1442550, 1682975, 2019570, 2885100, 3365950, 4039140, 5048925, 6731900, 10097850, 20195700]

約数ペア:

[(1, 20195700), (2, 10097850), (3, 6731900), (4, 5048925), (5, 4039140), (6, 3365950), (7, 2885100), (10, 2019570), (12, 1682975), (14, 1442550), (15, 1346380), (20, 1009785), (21, 961700), (25, 807828), (28, 721275), (30, 673190), (35, 577020), (42, 480850), (50, 403914), (59, 342300), (60, 336595), (70, 288510), (75, 269276), (84, 240425), (100, 201957), (105, 192340), (118, 171150), (140, 144255), (150, 134638), (163, 123900), (175, 115404), (177, 114100), (210, 96170), (236, 85575), (295, 68460), (300, 67319), (326, 61950), (350, 57702), (354, 57050), (413, 48900), (420, 48085), (489, 41300), (525, 38468), (590, 34230), (652, 30975), (700, 28851), (708, 28525), (815, 24780), (826, 24450), (885, 22820), (978, 20650), (1050, 19234), (1141, 17700), (1180, 17115), (1239, 16300), (1475, 13692), (1630, 12390), (1652, 12225), (1770, 11410), (1956, 10325), (2065, 9780), (2100, 9617), (2282, 8850), (2445, 8260), (2478, 8150), (2950, 6846), (3260, 6195), (3423, 5900), (3540, 5705), (4075, 4956), (4130, 4890), (4425, 4564)]