20961500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:192

約数の個数: 96

約数和(自身を含む): 53778816

約数和(自身を除く): 32817316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 113, 125, 140, 175, 212, 226, 250, 265, 350, 371, 452, 500, 530, 565, 700, 742, 791, 875, 1060, 1130, 1325, 1484, 1582, 1750, 1855, 2260, 2650, 2825, 3164, 3500, 3710, 3955, 5300, 5650, 5989, 6625, 7420, 7910, 9275, 11300, 11978, 13250, 14125, 15820, 18550, 19775, 23956, 26500, 28250, 29945, 37100, 39550, 41923, 46375, 56500, 59890, 79100, 83846, 92750, 98875, 119780, 149725, 167692, 185500, 197750, 209615, 299450, 395500, 419230, 598900, 748625, 838460, 1048075, 1497250, 2096150, 2994500, 4192300, 5240375, 10480750, 20961500]

約数ペア:

[(1, 20961500), (2, 10480750), (4, 5240375), (5, 4192300), (7, 2994500), (10, 2096150), (14, 1497250), (20, 1048075), (25, 838460), (28, 748625), (35, 598900), (50, 419230), (53, 395500), (70, 299450), (100, 209615), (106, 197750), (113, 185500), (125, 167692), (140, 149725), (175, 119780), (212, 98875), (226, 92750), (250, 83846), (265, 79100), (350, 59890), (371, 56500), (452, 46375), (500, 41923), (530, 39550), (565, 37100), (700, 29945), (742, 28250), (791, 26500), (875, 23956), (1060, 19775), (1130, 18550), (1325, 15820), (1484, 14125), (1582, 13250), (1750, 11978), (1855, 11300), (2260, 9275), (2650, 7910), (2825, 7420), (3164, 6625), (3500, 5989), (3710, 5650), (3955, 5300)]