213278520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19531}}^1$

素因数の和:19565

約数の個数: 128

約数和(自身を含む): 787530240

約数和(自身を除く): 574251720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 19531, 39062, 58593, 78124, 97655, 117186, 136717, 156248, 195310, 234372, 253903, 273434, 292965, 390620, 410151, 468744, 507806, 546868, 585930, 683585, 761709, 781240, 820302, 1015612, 1093736, 1171860, 1269515, 1367170, 1523418, 1640604, 1777321, 2031224, 2050755, 2343720, 2539030, 2734340, 3046836, 3281208, 3554642, 3808545, 4101510, 5078060, 5331963, 5468680, 6093672, 7109284, 7617090, 8203020, 8886605, 10156120, 10663926, 14218568, 15234180, 16406040, 17773210, 21327852, 26659815, 30468360, 35546420, 42655704, 53319630, 71092840, 106639260, 213278520]

約数ペア:

[(1, 213278520), (2, 106639260), (3, 71092840), (4, 53319630), (5, 42655704), (6, 35546420), (7, 30468360), (8, 26659815), (10, 21327852), (12, 17773210), (13, 16406040), (14, 15234180), (15, 14218568), (20, 10663926), (21, 10156120), (24, 8886605), (26, 8203020), (28, 7617090), (30, 7109284), (35, 6093672), (39, 5468680), (40, 5331963), (42, 5078060), (52, 4101510), (56, 3808545), (60, 3554642), (65, 3281208), (70, 3046836), (78, 2734340), (84, 2539030), (91, 2343720), (104, 2050755), (105, 2031224), (120, 1777321), (130, 1640604), (140, 1523418), (156, 1367170), (168, 1269515), (182, 1171860), (195, 1093736), (210, 1015612), (260, 820302), (273, 781240), (280, 761709), (312, 683585), (364, 585930), (390, 546868), (420, 507806), (455, 468744), (520, 410151), (546, 390620), (728, 292965), (780, 273434), (840, 253903), (910, 234372), (1092, 195310), (1365, 156248), (1560, 136717), (1820, 117186), (2184, 97655), (2730, 78124), (3640, 58593), (5460, 39062), (10920, 19531)]