1555986420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{15139}}^1$

素因数の和:15725

約数の個数: 72

約数和(自身を含む): 4728403680

約数和(自身を除く): 3172417260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 571, 1142, 1713, 2284, 2855, 3426, 5139, 5710, 6852, 8565, 10278, 11420, 15139, 17130, 20556, 25695, 30278, 34260, 45417, 51390, 60556, 75695, 90834, 102780, 136251, 151390, 181668, 227085, 272502, 302780, 454170, 545004, 681255, 908340, 1362510, 2725020, 8644369, 17288738, 25933107, 34577476, 43221845, 51866214, 77799321, 86443690, 103732428, 129665535, 155598642, 172887380, 259331070, 311197284, 388996605, 518662140, 777993210, 1555986420]

約数ペア:

[(1, 1555986420), (2, 777993210), (3, 518662140), (4, 388996605), (5, 311197284), (6, 259331070), (9, 172887380), (10, 155598642), (12, 129665535), (15, 103732428), (18, 86443690), (20, 77799321), (30, 51866214), (36, 43221845), (45, 34577476), (60, 25933107), (90, 17288738), (180, 8644369), (571, 2725020), (1142, 1362510), (1713, 908340), (2284, 681255), (2855, 545004), (3426, 454170), (5139, 302780), (5710, 272502), (6852, 227085), (8565, 181668), (10278, 151390), (11420, 136251), (15139, 102780), (17130, 90834), (20556, 75695), (25695, 60556), (30278, 51390), (34260, 45417)]