19004240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 46663680

約数和(自身を除く): 27659440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 97, 124, 155, 158, 194, 248, 310, 316, 388, 395, 485, 496, 620, 632, 776, 790, 970, 1240, 1264, 1552, 1580, 1940, 2449, 2480, 3007, 3160, 3880, 4898, 6014, 6320, 7663, 7760, 9796, 12028, 12245, 15035, 15326, 19592, 24056, 24490, 30070, 30652, 38315, 39184, 48112, 48980, 60140, 61304, 76630, 97960, 120280, 122608, 153260, 195920, 237553, 240560, 306520, 475106, 613040, 950212, 1187765, 1900424, 2375530, 3800848, 4751060, 9502120, 19004240]

約数ペア:

[(1, 19004240), (2, 9502120), (4, 4751060), (5, 3800848), (8, 2375530), (10, 1900424), (16, 1187765), (20, 950212), (31, 613040), (40, 475106), (62, 306520), (79, 240560), (80, 237553), (97, 195920), (124, 153260), (155, 122608), (158, 120280), (194, 97960), (248, 76630), (310, 61304), (316, 60140), (388, 48980), (395, 48112), (485, 39184), (496, 38315), (620, 30652), (632, 30070), (776, 24490), (790, 24056), (970, 19592), (1240, 15326), (1264, 15035), (1552, 12245), (1580, 12028), (1940, 9796), (2449, 7760), (2480, 7663), (3007, 6320), (3160, 6014), (3880, 4898)]