71668280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2064

約数の個数: 64

約数和(自身を含む): 172281600

約数和(自身を除く): 100613320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 1993, 3596, 3986, 4495, 7192, 7972, 8990, 9965, 15944, 17980, 19930, 35960, 39860, 57797, 61783, 79720, 115594, 123566, 231188, 247132, 288985, 308915, 462376, 494264, 577970, 617830, 1155940, 1235660, 1791707, 2311880, 2471320, 3583414, 7166828, 8958535, 14333656, 17917070, 35834140, 71668280]

約数ペア:

[(1, 71668280), (2, 35834140), (4, 17917070), (5, 14333656), (8, 8958535), (10, 7166828), (20, 3583414), (29, 2471320), (31, 2311880), (40, 1791707), (58, 1235660), (62, 1155940), (116, 617830), (124, 577970), (145, 494264), (155, 462376), (232, 308915), (248, 288985), (290, 247132), (310, 231188), (580, 123566), (620, 115594), (899, 79720), (1160, 61783), (1240, 57797), (1798, 39860), (1993, 35960), (3596, 19930), (3986, 17980), (4495, 15944), (7192, 9965), (7972, 8990)]