31877820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:289

約数の個数: 192

約数和(自身を含む): 112896000

約数和(自身を除く): 81018180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 27, 30, 36, 38, 39, 45, 52, 54, 57, 60, 65, 76, 78, 90, 95, 108, 114, 117, 130, 135, 156, 171, 180, 190, 195, 228, 234, 239, 247, 260, 270, 285, 342, 351, 380, 390, 468, 478, 494, 513, 540, 570, 585, 684, 702, 717, 741, 780, 855, 956, 988, 1026, 1140, 1170, 1195, 1235, 1404, 1434, 1482, 1710, 1755, 2052, 2151, 2223, 2340, 2390, 2470, 2565, 2868, 2964, 3107, 3420, 3510, 3585, 3705, 4302, 4446, 4541, 4780, 4940, 5130, 6214, 6453, 6669, 7020, 7170, 7410, 8604, 8892, 9082, 9321, 10260, 10755, 11115, 12428, 12906, 13338, 13623, 14340, 14820, 15535, 18164, 18642, 21510, 22230, 22705, 25812, 26676, 27246, 27963, 31070, 32265, 33345, 37284, 40869, 43020, 44460, 45410, 46605, 54492, 55926, 59033, 62140, 64530, 66690, 68115, 81738, 83889, 90820, 93210, 111852, 118066, 122607, 129060, 133380, 136230, 139815, 163476, 167778, 177099, 186420, 204345, 236132, 245214, 272460, 279630, 295165, 335556, 354198, 408690, 419445, 490428, 531297, 559260, 590330, 613035, 708396, 817380, 838890, 885495, 1062594, 1180660, 1226070, 1593891, 1677780, 1770990, 2125188, 2452140, 2656485, 3187782, 3541980, 5312970, 6375564, 7969455, 10625940, 15938910, 31877820]

約数ペア:

[(1, 31877820), (2, 15938910), (3, 10625940), (4, 7969455), (5, 6375564), (6, 5312970), (9, 3541980), (10, 3187782), (12, 2656485), (13, 2452140), (15, 2125188), (18, 1770990), (19, 1677780), (20, 1593891), (26, 1226070), (27, 1180660), (30, 1062594), (36, 885495), (38, 838890), (39, 817380), (45, 708396), (52, 613035), (54, 590330), (57, 559260), (60, 531297), (65, 490428), (76, 419445), (78, 408690), (90, 354198), (95, 335556), (108, 295165), (114, 279630), (117, 272460), (130, 245214), (135, 236132), (156, 204345), (171, 186420), (180, 177099), (190, 167778), (195, 163476), (228, 139815), (234, 136230), (239, 133380), (247, 129060), (260, 122607), (270, 118066), (285, 111852), (342, 93210), (351, 90820), (380, 83889), (390, 81738), (468, 68115), (478, 66690), (494, 64530), (513, 62140), (540, 59033), (570, 55926), (585, 54492), (684, 46605), (702, 45410), (717, 44460), (741, 43020), (780, 40869), (855, 37284), (956, 33345), (988, 32265), (1026, 31070), (1140, 27963), (1170, 27246), (1195, 26676), (1235, 25812), (1404, 22705), (1434, 22230), (1482, 21510), (1710, 18642), (1755, 18164), (2052, 15535), (2151, 14820), (2223, 14340), (2340, 13623), (2390, 13338), (2470, 12906), (2565, 12428), (2868, 11115), (2964, 10755), (3107, 10260), (3420, 9321), (3510, 9082), (3585, 8892), (3705, 8604), (4302, 7410), (4446, 7170), (4541, 7020), (4780, 6669), (4940, 6453), (5130, 6214)]