817793340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{21397}}^1$

素因数の和:21436

約数の個数: 144

約数和(自身を含む): 2868701472

約数和(自身を除く): 2050908132

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2548, 2730, 2940, 3185, 3822, 5460, 6370, 7644, 9555, 12740, 19110, 21397, 38220, 42794, 64191, 85588, 106985, 128382, 149779, 213970, 256764, 278161, 299558, 320955, 427940, 449337, 556322, 599116, 641910, 748895, 834483, 898674, 1048453, 1112644, 1283820, 1390805, 1497790, 1668966, 1797348, 1947127, 2096906, 2246685, 2781610, 2995580, 3145359, 3337932, 3894254, 4172415, 4193812, 4493370, 5242265, 5563220, 5841381, 6290718, 7788508, 8344830, 8986740, 9735635, 10484530, 11682762, 12581436, 13629889, 15726795, 16689660, 19471270, 20969060, 23365524, 27259778, 29206905, 31453590, 38942540, 40889667, 54519556, 58413810, 62907180, 68149445, 81779334, 116827620, 136298890, 163558668, 204448335, 272597780, 408896670, 817793340]

約数ペア:

[(1, 817793340), (2, 408896670), (3, 272597780), (4, 204448335), (5, 163558668), (6, 136298890), (7, 116827620), (10, 81779334), (12, 68149445), (13, 62907180), (14, 58413810), (15, 54519556), (20, 40889667), (21, 38942540), (26, 31453590), (28, 29206905), (30, 27259778), (35, 23365524), (39, 20969060), (42, 19471270), (49, 16689660), (52, 15726795), (60, 13629889), (65, 12581436), (70, 11682762), (78, 10484530), (84, 9735635), (91, 8986740), (98, 8344830), (105, 7788508), (130, 6290718), (140, 5841381), (147, 5563220), (156, 5242265), (182, 4493370), (195, 4193812), (196, 4172415), (210, 3894254), (245, 3337932), (260, 3145359), (273, 2995580), (294, 2781610), (364, 2246685), (390, 2096906), (420, 1947127), (455, 1797348), (490, 1668966), (546, 1497790), (588, 1390805), (637, 1283820), (735, 1112644), (780, 1048453), (910, 898674), (980, 834483), (1092, 748895), (1274, 641910), (1365, 599116), (1470, 556322), (1820, 449337), (1911, 427940), (2548, 320955), (2730, 299558), (2940, 278161), (3185, 256764), (3822, 213970), (5460, 149779), (6370, 128382), (7644, 106985), (9555, 85588), (12740, 64191), (19110, 42794), (21397, 38220)]