20346316720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{880031}}^1$

素因数の和:880078

約数の個数: 60

約数和(自身を含む): 50251587264

約数和(自身を除く): 29905270544

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 1156, 1360, 1445, 2312, 2890, 4624, 5780, 11560, 23120, 880031, 1760062, 3520124, 4400155, 7040248, 8800310, 14080496, 14960527, 17600620, 29921054, 35201240, 59842108, 70402480, 74802635, 119684216, 149605270, 239368432, 254328959, 299210540, 508657918, 598421080, 1017315836, 1196842160, 1271644795, 2034631672, 2543289590, 4069263344, 5086579180, 10173158360, 20346316720]

約数ペア:

[(1, 20346316720), (2, 10173158360), (4, 5086579180), (5, 4069263344), (8, 2543289590), (10, 2034631672), (16, 1271644795), (17, 1196842160), (20, 1017315836), (34, 598421080), (40, 508657918), (68, 299210540), (80, 254328959), (85, 239368432), (136, 149605270), (170, 119684216), (272, 74802635), (289, 70402480), (340, 59842108), (578, 35201240), (680, 29921054), (1156, 17600620), (1360, 14960527), (1445, 14080496), (2312, 8800310), (2890, 7040248), (4624, 4400155), (5780, 3520124), (11560, 1760062), (23120, 880031)]