128973520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 160

約数和(自身を含む): 348727680

約数和(自身を除く): 219754160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 61, 65, 76, 80, 95, 104, 107, 122, 130, 152, 190, 208, 214, 244, 247, 260, 304, 305, 380, 428, 488, 494, 520, 535, 610, 760, 793, 856, 976, 988, 1040, 1070, 1159, 1220, 1235, 1391, 1520, 1586, 1712, 1976, 2033, 2140, 2318, 2440, 2470, 2782, 3172, 3952, 3965, 4066, 4280, 4636, 4880, 4940, 5564, 5795, 6344, 6527, 6955, 7930, 8132, 8560, 9272, 9880, 10165, 11128, 11590, 12688, 13054, 13910, 15067, 15860, 16264, 18544, 19760, 20330, 22256, 23180, 26108, 26429, 27820, 30134, 31720, 32528, 32635, 40660, 46360, 52216, 52858, 55640, 60268, 63440, 65270, 75335, 81320, 84851, 92720, 104432, 105716, 111280, 120536, 124013, 130540, 132145, 150670, 162640, 169702, 211432, 241072, 248026, 261080, 264290, 301340, 339404, 422864, 424255, 496052, 522160, 528580, 602680, 620065, 678808, 848510, 992104, 1057160, 1205360, 1240130, 1357616, 1612169, 1697020, 1984208, 2114320, 2480260, 3224338, 3394040, 4960520, 6448676, 6788080, 8060845, 9921040, 12897352, 16121690, 25794704, 32243380, 64486760, 128973520]

約数ペア:

[(1, 128973520), (2, 64486760), (4, 32243380), (5, 25794704), (8, 16121690), (10, 12897352), (13, 9921040), (16, 8060845), (19, 6788080), (20, 6448676), (26, 4960520), (38, 3394040), (40, 3224338), (52, 2480260), (61, 2114320), (65, 1984208), (76, 1697020), (80, 1612169), (95, 1357616), (104, 1240130), (107, 1205360), (122, 1057160), (130, 992104), (152, 848510), (190, 678808), (208, 620065), (214, 602680), (244, 528580), (247, 522160), (260, 496052), (304, 424255), (305, 422864), (380, 339404), (428, 301340), (488, 264290), (494, 261080), (520, 248026), (535, 241072), (610, 211432), (760, 169702), (793, 162640), (856, 150670), (976, 132145), (988, 130540), (1040, 124013), (1070, 120536), (1159, 111280), (1220, 105716), (1235, 104432), (1391, 92720), (1520, 84851), (1586, 81320), (1712, 75335), (1976, 65270), (2033, 63440), (2140, 60268), (2318, 55640), (2440, 52858), (2470, 52216), (2782, 46360), (3172, 40660), (3952, 32635), (3965, 32528), (4066, 31720), (4280, 30134), (4636, 27820), (4880, 26429), (4940, 26108), (5564, 23180), (5795, 22256), (6344, 20330), (6527, 19760), (6955, 18544), (7930, 16264), (8132, 15860), (8560, 15067), (9272, 13910), (9880, 13054), (10165, 12688), (11128, 11590)]