285625620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{571}}^1$

素因数の和:990

約数の個数: 144

約数和(自身を含む): 994401408

約数和(自身を除く): 708775788

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, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 397, 420, 571, 630, 794, 1142, 1191, 1260, 1588, 1713, 1985, 2284, 2382, 2779, 2855, 3426, 3573, 3970, 3997, 4764, 5139, 5558, 5710, 5955, 6852, 7146, 7940, 7994, 8337, 8565, 10278, 11116, 11420, 11910, 11991, 13895, 14292, 15988, 16674, 17130, 17865, 19985, 20556, 23820, 23982, 25011, 25695, 27790, 33348, 34260, 35730, 35973, 39970, 41685, 47964, 50022, 51390, 55580, 59955, 71460, 71946, 79940, 83370, 100044, 102780, 119910, 125055, 143892, 166740, 179865, 226687, 239820, 250110, 359730, 453374, 500220, 680061, 719460, 906748, 1133435, 1360122, 1586809, 2040183, 2266870, 2720244, 3173618, 3400305, 4080366, 4533740, 4760427, 6347236, 6800610, 7934045, 8160732, 9520854, 10200915, 13601220, 14281281, 15868090, 19041708, 20401830, 23802135, 28562562, 31736180, 40803660, 47604270, 57125124, 71406405, 95208540, 142812810, 285625620]

約数ペア:

[(1, 285625620), (2, 142812810), (3, 95208540), (4, 71406405), (5, 57125124), (6, 47604270), (7, 40803660), (9, 31736180), (10, 28562562), (12, 23802135), (14, 20401830), (15, 19041708), (18, 15868090), (20, 14281281), (21, 13601220), (28, 10200915), (30, 9520854), (35, 8160732), (36, 7934045), (42, 6800610), (45, 6347236), (60, 4760427), (63, 4533740), (70, 4080366), (84, 3400305), (90, 3173618), (105, 2720244), (126, 2266870), (140, 2040183), (180, 1586809), (210, 1360122), (252, 1133435), (315, 906748), (397, 719460), (420, 680061), (571, 500220), (630, 453374), (794, 359730), (1142, 250110), (1191, 239820), (1260, 226687), (1588, 179865), (1713, 166740), (1985, 143892), (2284, 125055), (2382, 119910), (2779, 102780), (2855, 100044), (3426, 83370), (3573, 79940), (3970, 71946), (3997, 71460), (4764, 59955), (5139, 55580), (5558, 51390), (5710, 50022), (5955, 47964), (6852, 41685), (7146, 39970), (7940, 35973), (7994, 35730), (8337, 34260), (8565, 33348), (10278, 27790), (11116, 25695), (11420, 25011), (11910, 23982), (11991, 23820), (13895, 20556), (14292, 19985), (15988, 17865), (16674, 17130)]