30478420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7507}}^1$

素因数の和:7552

約数の個数: 48

約数和(自身を含む): 75680640

約数和(自身を除く): 45202220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 7507, 15014, 30028, 37535, 52549, 75070, 105098, 150140, 210196, 217703, 262745, 435406, 525490, 870812, 1050980, 1088515, 1523921, 2177030, 3047842, 4354060, 6095684, 7619605, 15239210, 30478420]

約数ペア:

[(1, 30478420), (2, 15239210), (4, 7619605), (5, 6095684), (7, 4354060), (10, 3047842), (14, 2177030), (20, 1523921), (28, 1088515), (29, 1050980), (35, 870812), (58, 525490), (70, 435406), (116, 262745), (140, 217703), (145, 210196), (203, 150140), (290, 105098), (406, 75070), (580, 52549), (812, 37535), (1015, 30028), (2030, 15014), (4060, 7507)]