7943950040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1\times {\mathrm{421}}^1$

素因数の和:853

約数の個数: 128

約数和(自身を含む): 19511997120

約数和(自身を除く): 11568047080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 277, 421, 520, 524, 554, 655, 842, 1048, 1108, 1310, 1385, 1684, 1703, 2105, 2216, 2620, 2770, 3368, 3406, 3601, 4210, 5240, 5473, 5540, 6812, 7202, 8420, 8515, 10946, 11080, 13624, 14404, 16840, 17030, 18005, 21892, 27365, 28808, 34060, 36010, 36287, 43784, 54730, 55151, 68120, 72020, 72574, 109460, 110302, 116617, 144040, 145148, 181435, 218920, 220604, 233234, 275755, 290296, 362870, 441208, 466468, 471731, 551510, 583085, 716963, 725740, 932936, 943462, 1103020, 1166170, 1433926, 1451480, 1516021, 1886924, 2206040, 2332340, 2358655, 2867852, 3032042, 3584815, 3773848, 4664680, 4717310, 5735704, 6064084, 7169630, 7580105, 9434620, 12128168, 14339260, 15160210, 15276827, 18869240, 28678520, 30320420, 30553654, 60640840, 61107308, 76384135, 122214616, 152768270, 198598751, 305536540, 397197502, 611073080, 794395004, 992993755, 1588790008, 1985987510, 3971975020, 7943950040]

約数ペア:

[(1, 7943950040), (2, 3971975020), (4, 1985987510), (5, 1588790008), (8, 992993755), (10, 794395004), (13, 611073080), (20, 397197502), (26, 305536540), (40, 198598751), (52, 152768270), (65, 122214616), (104, 76384135), (130, 61107308), (131, 60640840), (260, 30553654), (262, 30320420), (277, 28678520), (421, 18869240), (520, 15276827), (524, 15160210), (554, 14339260), (655, 12128168), (842, 9434620), (1048, 7580105), (1108, 7169630), (1310, 6064084), (1385, 5735704), (1684, 4717310), (1703, 4664680), (2105, 3773848), (2216, 3584815), (2620, 3032042), (2770, 2867852), (3368, 2358655), (3406, 2332340), (3601, 2206040), (4210, 1886924), (5240, 1516021), (5473, 1451480), (5540, 1433926), (6812, 1166170), (7202, 1103020), (8420, 943462), (8515, 932936), (10946, 725740), (11080, 716963), (13624, 583085), (14404, 551510), (16840, 471731), (17030, 466468), (18005, 441208), (21892, 362870), (27365, 290296), (28808, 275755), (34060, 233234), (36010, 220604), (36287, 218920), (43784, 181435), (54730, 145148), (55151, 144040), (68120, 116617), (72020, 110302), (72574, 109460)]