28158075

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 56948736

約数和(自身を除く): 28790661

約数列:

[1, 3, 5, 9, 11, 15, 25, 31, 33, 45, 55, 75, 93, 99, 155, 165, 225, 275, 279, 341, 367, 465, 495, 775, 825, 1023, 1101, 1395, 1705, 1835, 2325, 2475, 3069, 3303, 4037, 5115, 5505, 6975, 8525, 9175, 11377, 12111, 15345, 16515, 20185, 25575, 27525, 34131, 36333, 56885, 60555, 76725, 82575, 100925, 102393, 125147, 170655, 181665, 284425, 302775, 375441, 511965, 625735, 853275, 908325, 1126323, 1877205, 2559825, 3128675, 5631615, 9386025, 28158075]

約数ペア:

[(1, 28158075), (3, 9386025), (5, 5631615), (9, 3128675), (11, 2559825), (15, 1877205), (25, 1126323), (31, 908325), (33, 853275), (45, 625735), (55, 511965), (75, 375441), (93, 302775), (99, 284425), (155, 181665), (165, 170655), (225, 125147), (275, 102393), (279, 100925), (341, 82575), (367, 76725), (465, 60555), (495, 56885), (775, 36333), (825, 34131), (1023, 27525), (1101, 25575), (1395, 20185), (1705, 16515), (1835, 15345), (2325, 12111), (2475, 11377), (3069, 9175), (3303, 8525), (4037, 6975), (5115, 5505)]