18103540

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 49409640

約数和(自身を除く): 31306100

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 49, 52, 58, 65, 70, 91, 98, 116, 130, 140, 145, 182, 196, 203, 245, 260, 290, 343, 364, 377, 406, 455, 490, 580, 637, 686, 754, 812, 910, 980, 1015, 1274, 1372, 1421, 1508, 1715, 1820, 1885, 2030, 2401, 2548, 2639, 2842, 3185, 3430, 3770, 4060, 4459, 4802, 5278, 5684, 6370, 6860, 7105, 7540, 8918, 9604, 9947, 10556, 12005, 12740, 13195, 14210, 17836, 18473, 19894, 22295, 24010, 26390, 28420, 31213, 36946, 39788, 44590, 48020, 49735, 52780, 62426, 69629, 73892, 89180, 92365, 99470, 124852, 129311, 139258, 156065, 184730, 198940, 258622, 278516, 312130, 348145, 369460, 517244, 624260, 646555, 696290, 905177, 1293110, 1392580, 1810354, 2586220, 3620708, 4525885, 9051770, 18103540]

約数ペア:

[(1, 18103540), (2, 9051770), (4, 4525885), (5, 3620708), (7, 2586220), (10, 1810354), (13, 1392580), (14, 1293110), (20, 905177), (26, 696290), (28, 646555), (29, 624260), (35, 517244), (49, 369460), (52, 348145), (58, 312130), (65, 278516), (70, 258622), (91, 198940), (98, 184730), (116, 156065), (130, 139258), (140, 129311), (145, 124852), (182, 99470), (196, 92365), (203, 89180), (245, 73892), (260, 69629), (290, 62426), (343, 52780), (364, 49735), (377, 48020), (406, 44590), (455, 39788), (490, 36946), (580, 31213), (637, 28420), (686, 26390), (754, 24010), (812, 22295), (910, 19894), (980, 18473), (1015, 17836), (1274, 14210), (1372, 13195), (1421, 12740), (1508, 12005), (1715, 10556), (1820, 9947), (1885, 9604), (2030, 8918), (2401, 7540), (2548, 7105), (2639, 6860), (2842, 6370), (3185, 5684), (3430, 5278), (3770, 4802), (4060, 4459)]