405242005

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{653}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 603903600

約数和(自身を除く): 198661595

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 149, 245, 595, 653, 745, 833, 1043, 2533, 3265, 4165, 4571, 5215, 7301, 11101, 12665, 17731, 22855, 31997, 36505, 55505, 77707, 88655, 97297, 124117, 159985, 388535, 486485, 543949, 620585, 681079, 1654049, 2719745, 3405395, 4767553, 8270245, 11578343, 23837765, 57891715, 81048401, 405242005]

約数ペア:

[(1, 405242005), (5, 81048401), (7, 57891715), (17, 23837765), (35, 11578343), (49, 8270245), (85, 4767553), (119, 3405395), (149, 2719745), (245, 1654049), (595, 681079), (653, 620585), (745, 543949), (833, 486485), (1043, 388535), (2533, 159985), (3265, 124117), (4165, 97297), (4571, 88655), (5215, 77707), (7301, 55505), (11101, 36505), (12665, 31997), (17731, 22855)]