28248440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 128

約数和(自身を含む): 76032000

約数和(自身を除く): 47783560

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 88, 95, 109, 110, 124, 152, 155, 190, 209, 218, 220, 248, 310, 341, 380, 418, 436, 440, 545, 589, 620, 682, 760, 836, 872, 1045, 1090, 1178, 1199, 1240, 1364, 1672, 1705, 2071, 2090, 2180, 2356, 2398, 2728, 2945, 3379, 3410, 4142, 4180, 4360, 4712, 4796, 5890, 5995, 6479, 6758, 6820, 8284, 8360, 9592, 10355, 11780, 11990, 12958, 13516, 13640, 16568, 16895, 20710, 22781, 23560, 23980, 25916, 27032, 32395, 33790, 37169, 41420, 45562, 47960, 51832, 64201, 64790, 67580, 74338, 82840, 91124, 113905, 128402, 129580, 135160, 148676, 182248, 185845, 227810, 256804, 259160, 297352, 321005, 371690, 455620, 513608, 642010, 706211, 743380, 911240, 1284020, 1412422, 1486760, 2568040, 2824844, 3531055, 5649688, 7062110, 14124220, 28248440]

約数ペア:

[(1, 28248440), (2, 14124220), (4, 7062110), (5, 5649688), (8, 3531055), (10, 2824844), (11, 2568040), (19, 1486760), (20, 1412422), (22, 1284020), (31, 911240), (38, 743380), (40, 706211), (44, 642010), (55, 513608), (62, 455620), (76, 371690), (88, 321005), (95, 297352), (109, 259160), (110, 256804), (124, 227810), (152, 185845), (155, 182248), (190, 148676), (209, 135160), (218, 129580), (220, 128402), (248, 113905), (310, 91124), (341, 82840), (380, 74338), (418, 67580), (436, 64790), (440, 64201), (545, 51832), (589, 47960), (620, 45562), (682, 41420), (760, 37169), (836, 33790), (872, 32395), (1045, 27032), (1090, 25916), (1178, 23980), (1199, 23560), (1240, 22781), (1364, 20710), (1672, 16895), (1705, 16568), (2071, 13640), (2090, 13516), (2180, 12958), (2356, 11990), (2398, 11780), (2728, 10355), (2945, 9592), (3379, 8360), (3410, 8284), (4142, 6820), (4180, 6758), (4360, 6479), (4712, 5995), (4796, 5890)]