128617440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:505

約数の個数: 192

約数和(自身を含む): 468840960

約数和(自身を除く): 340223520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 101, 105, 112, 120, 140, 160, 168, 202, 210, 224, 240, 280, 303, 336, 379, 404, 420, 480, 505, 560, 606, 672, 707, 758, 808, 840, 1010, 1120, 1137, 1212, 1414, 1515, 1516, 1616, 1680, 1895, 2020, 2121, 2274, 2424, 2653, 2828, 3030, 3032, 3232, 3360, 3535, 3790, 4040, 4242, 4548, 4848, 5306, 5656, 5685, 6060, 6064, 7070, 7580, 7959, 8080, 8484, 9096, 9696, 10605, 10612, 11312, 11370, 12120, 12128, 13265, 14140, 15160, 15918, 16160, 16968, 18192, 21210, 21224, 22624, 22740, 24240, 26530, 28280, 30320, 31836, 33936, 36384, 38279, 39795, 42420, 42448, 45480, 48480, 53060, 56560, 60640, 63672, 67872, 76558, 79590, 84840, 84896, 90960, 106120, 113120, 114837, 127344, 153116, 159180, 169680, 181920, 191395, 212240, 229674, 254688, 267953, 306232, 318360, 339360, 382790, 424480, 459348, 535906, 574185, 612464, 636720, 765580, 803859, 918696, 1071812, 1148370, 1224928, 1273440, 1339765, 1531160, 1607718, 1837392, 2143624, 2296740, 2679530, 3062320, 3215436, 3674784, 4019295, 4287248, 4593480, 5359060, 6124640, 6430872, 8038590, 8574496, 9186960, 10718120, 12861744, 16077180, 18373920, 21436240, 25723488, 32154360, 42872480, 64308720, 128617440]

約数ペア:

[(1, 128617440), (2, 64308720), (3, 42872480), (4, 32154360), (5, 25723488), (6, 21436240), (7, 18373920), (8, 16077180), (10, 12861744), (12, 10718120), (14, 9186960), (15, 8574496), (16, 8038590), (20, 6430872), (21, 6124640), (24, 5359060), (28, 4593480), (30, 4287248), (32, 4019295), (35, 3674784), (40, 3215436), (42, 3062320), (48, 2679530), (56, 2296740), (60, 2143624), (70, 1837392), (80, 1607718), (84, 1531160), (96, 1339765), (101, 1273440), (105, 1224928), (112, 1148370), (120, 1071812), (140, 918696), (160, 803859), (168, 765580), (202, 636720), (210, 612464), (224, 574185), (240, 535906), (280, 459348), (303, 424480), (336, 382790), (379, 339360), (404, 318360), (420, 306232), (480, 267953), (505, 254688), (560, 229674), (606, 212240), (672, 191395), (707, 181920), (758, 169680), (808, 159180), (840, 153116), (1010, 127344), (1120, 114837), (1137, 113120), (1212, 106120), (1414, 90960), (1515, 84896), (1516, 84840), (1616, 79590), (1680, 76558), (1895, 67872), (2020, 63672), (2121, 60640), (2274, 56560), (2424, 53060), (2653, 48480), (2828, 45480), (3030, 42448), (3032, 42420), (3232, 39795), (3360, 38279), (3535, 36384), (3790, 33936), (4040, 31836), (4242, 30320), (4548, 28280), (4848, 26530), (5306, 24240), (5656, 22740), (5685, 22624), (6060, 21224), (6064, 21210), (7070, 18192), (7580, 16968), (7959, 16160), (8080, 15918), (8484, 15160), (9096, 14140), (9696, 13265), (10605, 12128), (10612, 12120), (11312, 11370)]