239795220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{81563}}^1$

素因数の和:81589

約数の個数: 72

約数和(自身を含む): 781056864

約数和(自身を除く): 541261644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 81563, 163126, 244689, 326252, 407815, 489378, 570941, 815630, 978756, 1141882, 1223445, 1631260, 1712823, 2283764, 2446890, 2854705, 3425646, 3996587, 4893780, 5709410, 6851292, 7993174, 8564115, 11418820, 11989761, 15986348, 17128230, 19982935, 23979522, 34256460, 39965870, 47959044, 59948805, 79931740, 119897610, 239795220]

約数ペア:

[(1, 239795220), (2, 119897610), (3, 79931740), (4, 59948805), (5, 47959044), (6, 39965870), (7, 34256460), (10, 23979522), (12, 19982935), (14, 17128230), (15, 15986348), (20, 11989761), (21, 11418820), (28, 8564115), (30, 7993174), (35, 6851292), (42, 5709410), (49, 4893780), (60, 3996587), (70, 3425646), (84, 2854705), (98, 2446890), (105, 2283764), (140, 1712823), (147, 1631260), (196, 1223445), (210, 1141882), (245, 978756), (294, 815630), (420, 570941), (490, 489378), (588, 407815), (735, 326252), (980, 244689), (1470, 163126), (2940, 81563)]