28269396

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 74989824

約数和(自身を除く): 46720428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 73, 93, 124, 146, 186, 219, 279, 292, 347, 372, 438, 558, 657, 694, 876, 1041, 1116, 1314, 1388, 2082, 2263, 2628, 3123, 4164, 4526, 6246, 6789, 9052, 10757, 12492, 13578, 20367, 21514, 25331, 27156, 32271, 40734, 43028, 50662, 64542, 75993, 81468, 96813, 101324, 129084, 151986, 193626, 227979, 303972, 387252, 455958, 785261, 911916, 1570522, 2355783, 3141044, 4711566, 7067349, 9423132, 14134698, 28269396]

約数ペア:

[(1, 28269396), (2, 14134698), (3, 9423132), (4, 7067349), (6, 4711566), (9, 3141044), (12, 2355783), (18, 1570522), (31, 911916), (36, 785261), (62, 455958), (73, 387252), (93, 303972), (124, 227979), (146, 193626), (186, 151986), (219, 129084), (279, 101324), (292, 96813), (347, 81468), (372, 75993), (438, 64542), (558, 50662), (657, 43028), (694, 40734), (876, 32271), (1041, 27156), (1116, 25331), (1314, 21514), (1388, 20367), (2082, 13578), (2263, 12492), (2628, 10757), (3123, 9052), (4164, 6789), (4526, 6246)]