28908900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:152

約数の個数: 180

約数和(自身を含む): 97045872

約数和(自身を除く): 68136972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 43, 45, 50, 54, 60, 75, 81, 83, 86, 90, 100, 108, 129, 135, 150, 162, 166, 172, 180, 215, 225, 249, 258, 270, 300, 324, 332, 387, 405, 415, 430, 450, 498, 516, 540, 645, 675, 747, 774, 810, 830, 860, 900, 996, 1075, 1161, 1245, 1290, 1350, 1494, 1548, 1620, 1660, 1935, 2025, 2075, 2150, 2241, 2322, 2490, 2580, 2700, 2988, 3225, 3483, 3569, 3735, 3870, 4050, 4150, 4300, 4482, 4644, 4980, 5805, 6225, 6450, 6723, 6966, 7138, 7470, 7740, 8100, 8300, 8964, 9675, 10707, 11205, 11610, 12450, 12900, 13446, 13932, 14276, 14940, 17415, 17845, 18675, 19350, 21414, 22410, 23220, 24900, 26892, 29025, 32121, 33615, 34830, 35690, 37350, 38700, 42828, 44820, 53535, 56025, 58050, 64242, 67230, 69660, 71380, 74700, 87075, 89225, 96363, 107070, 112050, 116100, 128484, 134460, 160605, 168075, 174150, 178450, 192726, 214140, 224100, 267675, 289089, 321210, 336150, 348300, 356900, 385452, 481815, 535350, 578178, 642420, 672300, 803025, 963630, 1070700, 1156356, 1445445, 1606050, 1927260, 2409075, 2890890, 3212100, 4818150, 5781780, 7227225, 9636300, 14454450, 28908900]

約数ペア:

[(1, 28908900), (2, 14454450), (3, 9636300), (4, 7227225), (5, 5781780), (6, 4818150), (9, 3212100), (10, 2890890), (12, 2409075), (15, 1927260), (18, 1606050), (20, 1445445), (25, 1156356), (27, 1070700), (30, 963630), (36, 803025), (43, 672300), (45, 642420), (50, 578178), (54, 535350), (60, 481815), (75, 385452), (81, 356900), (83, 348300), (86, 336150), (90, 321210), (100, 289089), (108, 267675), (129, 224100), (135, 214140), (150, 192726), (162, 178450), (166, 174150), (172, 168075), (180, 160605), (215, 134460), (225, 128484), (249, 116100), (258, 112050), (270, 107070), (300, 96363), (324, 89225), (332, 87075), (387, 74700), (405, 71380), (415, 69660), (430, 67230), (450, 64242), (498, 58050), (516, 56025), (540, 53535), (645, 44820), (675, 42828), (747, 38700), (774, 37350), (810, 35690), (830, 34830), (860, 33615), (900, 32121), (996, 29025), (1075, 26892), (1161, 24900), (1245, 23220), (1290, 22410), (1350, 21414), (1494, 19350), (1548, 18675), (1620, 17845), (1660, 17415), (1935, 14940), (2025, 14276), (2075, 13932), (2150, 13446), (2241, 12900), (2322, 12450), (2490, 11610), (2580, 11205), (2700, 10707), (2988, 9675), (3225, 8964), (3483, 8300), (3569, 8100), (3735, 7740), (3870, 7470), (4050, 7138), (4150, 6966), (4300, 6723), (4482, 6450), (4644, 6225), (4980, 5805)]