28611440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 160

約数和(自身を含む): 81369792

約数和(自身を除く): 52758352

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 41, 44, 52, 55, 61, 65, 80, 82, 88, 104, 110, 122, 130, 143, 164, 176, 205, 208, 220, 244, 260, 286, 305, 328, 410, 440, 451, 488, 520, 533, 572, 610, 656, 671, 715, 793, 820, 880, 902, 976, 1040, 1066, 1144, 1220, 1342, 1430, 1586, 1640, 1804, 2132, 2255, 2288, 2440, 2501, 2665, 2684, 2860, 3172, 3280, 3355, 3608, 3965, 4264, 4510, 4880, 5002, 5330, 5368, 5720, 5863, 6344, 6710, 7216, 7930, 8528, 8723, 9020, 10004, 10660, 10736, 11440, 11726, 12505, 12688, 13420, 15860, 17446, 18040, 20008, 21320, 23452, 25010, 26840, 27511, 29315, 31720, 32513, 34892, 36080, 40016, 42640, 43615, 46904, 50020, 53680, 55022, 58630, 63440, 65026, 69784, 87230, 93808, 100040, 110044, 117260, 130052, 137555, 139568, 162565, 174460, 200080, 220088, 234520, 260104, 275110, 325130, 348920, 357643, 440176, 469040, 520208, 550220, 650260, 697840, 715286, 1100440, 1300520, 1430572, 1788215, 2200880, 2601040, 2861144, 3576430, 5722288, 7152860, 14305720, 28611440]

約数ペア:

[(1, 28611440), (2, 14305720), (4, 7152860), (5, 5722288), (8, 3576430), (10, 2861144), (11, 2601040), (13, 2200880), (16, 1788215), (20, 1430572), (22, 1300520), (26, 1100440), (40, 715286), (41, 697840), (44, 650260), (52, 550220), (55, 520208), (61, 469040), (65, 440176), (80, 357643), (82, 348920), (88, 325130), (104, 275110), (110, 260104), (122, 234520), (130, 220088), (143, 200080), (164, 174460), (176, 162565), (205, 139568), (208, 137555), (220, 130052), (244, 117260), (260, 110044), (286, 100040), (305, 93808), (328, 87230), (410, 69784), (440, 65026), (451, 63440), (488, 58630), (520, 55022), (533, 53680), (572, 50020), (610, 46904), (656, 43615), (671, 42640), (715, 40016), (793, 36080), (820, 34892), (880, 32513), (902, 31720), (976, 29315), (1040, 27511), (1066, 26840), (1144, 25010), (1220, 23452), (1342, 21320), (1430, 20008), (1586, 18040), (1640, 17446), (1804, 15860), (2132, 13420), (2255, 12688), (2288, 12505), (2440, 11726), (2501, 11440), (2665, 10736), (2684, 10660), (2860, 10004), (3172, 9020), (3280, 8723), (3355, 8528), (3608, 7930), (3965, 7216), (4264, 6710), (4510, 6344), (4880, 5863), (5002, 5720), (5330, 5368)]