19859700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^3\times {\mathrm{193}}^1$

素因数の和:231

約数の個数: 144

約数和(自身を含む): 67356800

約数和(自身を除く): 47497100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 193, 196, 210, 245, 294, 300, 343, 350, 386, 420, 490, 525, 579, 588, 686, 700, 735, 772, 965, 980, 1029, 1050, 1158, 1225, 1351, 1372, 1470, 1715, 1930, 2058, 2100, 2316, 2450, 2702, 2895, 2940, 3430, 3675, 3860, 4053, 4116, 4825, 4900, 5145, 5404, 5790, 6755, 6860, 7350, 8106, 8575, 9457, 9650, 10290, 11580, 13510, 14475, 14700, 16212, 17150, 18914, 19300, 20265, 20580, 25725, 27020, 28371, 28950, 33775, 34300, 37828, 40530, 47285, 51450, 56742, 57900, 66199, 67550, 81060, 94570, 101325, 102900, 113484, 132398, 135100, 141855, 189140, 198597, 202650, 236425, 264796, 283710, 330995, 397194, 405300, 472850, 567420, 661990, 709275, 794388, 945700, 992985, 1323980, 1418550, 1654975, 1985970, 2837100, 3309950, 3971940, 4964925, 6619900, 9929850, 19859700]

約数ペア:

[(1, 19859700), (2, 9929850), (3, 6619900), (4, 4964925), (5, 3971940), (6, 3309950), (7, 2837100), (10, 1985970), (12, 1654975), (14, 1418550), (15, 1323980), (20, 992985), (21, 945700), (25, 794388), (28, 709275), (30, 661990), (35, 567420), (42, 472850), (49, 405300), (50, 397194), (60, 330995), (70, 283710), (75, 264796), (84, 236425), (98, 202650), (100, 198597), (105, 189140), (140, 141855), (147, 135100), (150, 132398), (175, 113484), (193, 102900), (196, 101325), (210, 94570), (245, 81060), (294, 67550), (300, 66199), (343, 57900), (350, 56742), (386, 51450), (420, 47285), (490, 40530), (525, 37828), (579, 34300), (588, 33775), (686, 28950), (700, 28371), (735, 27020), (772, 25725), (965, 20580), (980, 20265), (1029, 19300), (1050, 18914), (1158, 17150), (1225, 16212), (1351, 14700), (1372, 14475), (1470, 13510), (1715, 11580), (1930, 10290), (2058, 9650), (2100, 9457), (2316, 8575), (2450, 8106), (2702, 7350), (2895, 6860), (2940, 6755), (3430, 5790), (3675, 5404), (3860, 5145), (4053, 4900), (4116, 4825)]