71820490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1439}}^1$

素因数の和:1507

約数の個数: 64

約数和(自身を含む): 159252480

約数和(自身を除く): 87431990

約数列:

[1, 2, 5, 7, 10, 14, 23, 31, 35, 46, 62, 70, 115, 155, 161, 217, 230, 310, 322, 434, 713, 805, 1085, 1426, 1439, 1610, 2170, 2878, 3565, 4991, 7130, 7195, 9982, 10073, 14390, 20146, 24955, 33097, 44609, 49910, 50365, 66194, 89218, 100730, 165485, 223045, 231679, 312263, 330970, 446090, 463358, 624526, 1026007, 1158395, 1561315, 2052014, 2316790, 3122630, 5130035, 7182049, 10260070, 14364098, 35910245, 71820490]

約数ペア:

[(1, 71820490), (2, 35910245), (5, 14364098), (7, 10260070), (10, 7182049), (14, 5130035), (23, 3122630), (31, 2316790), (35, 2052014), (46, 1561315), (62, 1158395), (70, 1026007), (115, 624526), (155, 463358), (161, 446090), (217, 330970), (230, 312263), (310, 231679), (322, 223045), (434, 165485), (713, 100730), (805, 89218), (1085, 66194), (1426, 50365), (1439, 49910), (1610, 44609), (2170, 33097), (2878, 24955), (3565, 20146), (4991, 14390), (7130, 10073), (7195, 9982)]