1780454930

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1973}}^1$

素因数の和:2123

約数の個数: 64

約数和(自身を含む): 3438360576

約数和(自身を除く): 1657905646

約数列:

[1, 2, 5, 10, 31, 41, 62, 71, 82, 142, 155, 205, 310, 355, 410, 710, 1271, 1973, 2201, 2542, 2911, 3946, 4402, 5822, 6355, 9865, 11005, 12710, 14555, 19730, 22010, 29110, 61163, 80893, 90241, 122326, 140083, 161786, 180482, 280166, 305815, 404465, 451205, 611630, 700415, 808930, 902410, 1400830, 2507683, 4342573, 5015366, 5743403, 8685146, 11486806, 12538415, 21712865, 25076830, 28717015, 43425730, 57434030, 178045493, 356090986, 890227465, 1780454930]

約数ペア:

[(1, 1780454930), (2, 890227465), (5, 356090986), (10, 178045493), (31, 57434030), (41, 43425730), (62, 28717015), (71, 25076830), (82, 21712865), (142, 12538415), (155, 11486806), (205, 8685146), (310, 5743403), (355, 5015366), (410, 4342573), (710, 2507683), (1271, 1400830), (1973, 902410), (2201, 808930), (2542, 700415), (2911, 611630), (3946, 451205), (4402, 404465), (5822, 305815), (6355, 280166), (9865, 180482), (11005, 161786), (12710, 140083), (14555, 122326), (19730, 90241), (22010, 80893), (29110, 61163)]