420879420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1373}}^1$

素因数の和:1532

約数の個数: 144

約数和(自身を含む): 1386376992

約数和(自身を除く): 965497572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 131, 156, 180, 195, 234, 260, 262, 390, 393, 468, 524, 585, 655, 780, 786, 1170, 1179, 1310, 1373, 1572, 1703, 1965, 2340, 2358, 2620, 2746, 3406, 3930, 4119, 4716, 5109, 5492, 5895, 6812, 6865, 7860, 8238, 8515, 10218, 11790, 12357, 13730, 15327, 16476, 17030, 17849, 20436, 20595, 23580, 24714, 25545, 27460, 30654, 34060, 35698, 41190, 49428, 51090, 53547, 61308, 61785, 71396, 76635, 82380, 89245, 102180, 107094, 123570, 153270, 160641, 178490, 179863, 214188, 247140, 267735, 306540, 321282, 356980, 359726, 535470, 539589, 642564, 719452, 803205, 899315, 1070940, 1079178, 1606410, 1618767, 1798630, 2158356, 2338219, 2697945, 3212820, 3237534, 3597260, 4676438, 5395890, 6475068, 7014657, 8093835, 9352876, 10791780, 11691095, 14029314, 16187670, 21043971, 23382190, 28058628, 32375340, 35073285, 42087942, 46764380, 70146570, 84175884, 105219855, 140293140, 210439710, 420879420]

約数ペア:

[(1, 420879420), (2, 210439710), (3, 140293140), (4, 105219855), (5, 84175884), (6, 70146570), (9, 46764380), (10, 42087942), (12, 35073285), (13, 32375340), (15, 28058628), (18, 23382190), (20, 21043971), (26, 16187670), (30, 14029314), (36, 11691095), (39, 10791780), (45, 9352876), (52, 8093835), (60, 7014657), (65, 6475068), (78, 5395890), (90, 4676438), (117, 3597260), (130, 3237534), (131, 3212820), (156, 2697945), (180, 2338219), (195, 2158356), (234, 1798630), (260, 1618767), (262, 1606410), (390, 1079178), (393, 1070940), (468, 899315), (524, 803205), (585, 719452), (655, 642564), (780, 539589), (786, 535470), (1170, 359726), (1179, 356980), (1310, 321282), (1373, 306540), (1572, 267735), (1703, 247140), (1965, 214188), (2340, 179863), (2358, 178490), (2620, 160641), (2746, 153270), (3406, 123570), (3930, 107094), (4119, 102180), (4716, 89245), (5109, 82380), (5492, 76635), (5895, 71396), (6812, 61785), (6865, 61308), (7860, 53547), (8238, 51090), (8515, 49428), (10218, 41190), (11790, 35698), (12357, 34060), (13730, 30654), (15327, 27460), (16476, 25545), (17030, 24714), (17849, 23580), (20436, 20595)]