321302020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1085

約数の個数: 96

約数和(自身を含む): 769950720

約数和(自身を除く): 448648700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 43, 52, 58, 65, 86, 116, 130, 145, 172, 215, 260, 290, 377, 430, 559, 580, 754, 860, 991, 1118, 1247, 1508, 1885, 1982, 2236, 2494, 2795, 3770, 3964, 4955, 4988, 5590, 6235, 7540, 9910, 11180, 12470, 12883, 16211, 19820, 24940, 25766, 28739, 32422, 42613, 51532, 57478, 64415, 64844, 81055, 85226, 114956, 128830, 143695, 162110, 170452, 213065, 257660, 287390, 324220, 373607, 426130, 553969, 574780, 747214, 852260, 1107938, 1235777, 1494428, 1868035, 2215876, 2471554, 2769845, 3736070, 4943108, 5539690, 6178885, 7472140, 11079380, 12357770, 16065101, 24715540, 32130202, 64260404, 80325505, 160651010, 321302020]

約数ペア:

[(1, 321302020), (2, 160651010), (4, 80325505), (5, 64260404), (10, 32130202), (13, 24715540), (20, 16065101), (26, 12357770), (29, 11079380), (43, 7472140), (52, 6178885), (58, 5539690), (65, 4943108), (86, 3736070), (116, 2769845), (130, 2471554), (145, 2215876), (172, 1868035), (215, 1494428), (260, 1235777), (290, 1107938), (377, 852260), (430, 747214), (559, 574780), (580, 553969), (754, 426130), (860, 373607), (991, 324220), (1118, 287390), (1247, 257660), (1508, 213065), (1885, 170452), (1982, 162110), (2236, 143695), (2494, 128830), (2795, 114956), (3770, 85226), (3964, 81055), (4955, 64844), (4988, 64415), (5590, 57478), (6235, 51532), (7540, 42613), (9910, 32422), (11180, 28739), (12470, 25766), (12883, 24940), (16211, 19820)]