30149980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6947}}^1$

素因数の和:6994

約数の個数: 48

約数和(自身を含む): 74704896

約数和(自身を除く): 44554916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6947, 13894, 27788, 34735, 48629, 69470, 97258, 138940, 194516, 215357, 243145, 430714, 486290, 861428, 972580, 1076785, 1507499, 2153570, 3014998, 4307140, 6029996, 7537495, 15074990, 30149980]

約数ペア:

[(1, 30149980), (2, 15074990), (4, 7537495), (5, 6029996), (7, 4307140), (10, 3014998), (14, 2153570), (20, 1507499), (28, 1076785), (31, 972580), (35, 861428), (62, 486290), (70, 430714), (124, 243145), (140, 215357), (155, 194516), (217, 138940), (310, 97258), (434, 69470), (620, 48629), (868, 34735), (1085, 27788), (2170, 13894), (4340, 6947)]