20307210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41900790

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 59, 66, 70, 77, 105, 110, 118, 149, 154, 165, 177, 210, 231, 295, 298, 330, 354, 385, 413, 447, 462, 590, 649, 745, 770, 826, 885, 894, 1043, 1155, 1239, 1298, 1490, 1639, 1770, 1947, 2065, 2086, 2235, 2310, 2478, 3129, 3245, 3278, 3894, 4130, 4470, 4543, 4917, 5215, 6195, 6258, 6490, 8195, 8791, 9086, 9735, 9834, 10430, 11473, 12390, 13629, 15645, 16390, 17582, 19470, 22715, 22946, 24585, 26373, 27258, 31290, 34419, 43955, 45430, 49170, 52746, 57365, 61537, 68145, 68838, 87910, 96701, 114730, 123074, 131865, 136290, 172095, 184611, 193402, 263730, 290103, 307685, 344190, 369222, 483505, 580206, 615370, 676907, 923055, 967010, 1353814, 1450515, 1846110, 2030721, 2901030, 3384535, 4061442, 6769070, 10153605, 20307210]

約数ペア:

[(1, 20307210), (2, 10153605), (3, 6769070), (5, 4061442), (6, 3384535), (7, 2901030), (10, 2030721), (11, 1846110), (14, 1450515), (15, 1353814), (21, 967010), (22, 923055), (30, 676907), (33, 615370), (35, 580206), (42, 483505), (55, 369222), (59, 344190), (66, 307685), (70, 290103), (77, 263730), (105, 193402), (110, 184611), (118, 172095), (149, 136290), (154, 131865), (165, 123074), (177, 114730), (210, 96701), (231, 87910), (295, 68838), (298, 68145), (330, 61537), (354, 57365), (385, 52746), (413, 49170), (447, 45430), (462, 43955), (590, 34419), (649, 31290), (745, 27258), (770, 26373), (826, 24585), (885, 22946), (894, 22715), (1043, 19470), (1155, 17582), (1239, 16390), (1298, 15645), (1490, 13629), (1639, 12390), (1770, 11473), (1947, 10430), (2065, 9834), (2086, 9735), (2235, 9086), (2310, 8791), (2478, 8195), (3129, 6490), (3245, 6258), (3278, 6195), (3894, 5215), (4130, 4917), (4470, 4543)]