28045680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 160

約数和(自身を含む): 95618880

約数和(自身を除く): 67573200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 89, 101, 104, 120, 130, 156, 178, 195, 202, 208, 240, 260, 267, 303, 312, 356, 390, 404, 445, 505, 520, 534, 606, 624, 712, 780, 808, 890, 1010, 1040, 1068, 1157, 1212, 1313, 1335, 1424, 1515, 1560, 1616, 1780, 2020, 2136, 2314, 2424, 2626, 2670, 3030, 3120, 3471, 3560, 3939, 4040, 4272, 4628, 4848, 5252, 5340, 5785, 6060, 6565, 6942, 7120, 7878, 8080, 8989, 9256, 10504, 10680, 11570, 12120, 13130, 13884, 15756, 17355, 17978, 18512, 19695, 21008, 21360, 23140, 24240, 26260, 26967, 27768, 31512, 34710, 35956, 39390, 44945, 46280, 52520, 53934, 55536, 63024, 69420, 71912, 78780, 89890, 92560, 105040, 107868, 116857, 134835, 138840, 143824, 157560, 179780, 215736, 233714, 269670, 277680, 315120, 350571, 359560, 431472, 467428, 539340, 584285, 701142, 719120, 934856, 1078680, 1168570, 1402284, 1752855, 1869712, 2157360, 2337140, 2804568, 3505710, 4674280, 5609136, 7011420, 9348560, 14022840, 28045680]

約数ペア:

[(1, 28045680), (2, 14022840), (3, 9348560), (4, 7011420), (5, 5609136), (6, 4674280), (8, 3505710), (10, 2804568), (12, 2337140), (13, 2157360), (15, 1869712), (16, 1752855), (20, 1402284), (24, 1168570), (26, 1078680), (30, 934856), (39, 719120), (40, 701142), (48, 584285), (52, 539340), (60, 467428), (65, 431472), (78, 359560), (80, 350571), (89, 315120), (101, 277680), (104, 269670), (120, 233714), (130, 215736), (156, 179780), (178, 157560), (195, 143824), (202, 138840), (208, 134835), (240, 116857), (260, 107868), (267, 105040), (303, 92560), (312, 89890), (356, 78780), (390, 71912), (404, 69420), (445, 63024), (505, 55536), (520, 53934), (534, 52520), (606, 46280), (624, 44945), (712, 39390), (780, 35956), (808, 34710), (890, 31512), (1010, 27768), (1040, 26967), (1068, 26260), (1157, 24240), (1212, 23140), (1313, 21360), (1335, 21008), (1424, 19695), (1515, 18512), (1560, 17978), (1616, 17355), (1780, 15756), (2020, 13884), (2136, 13130), (2314, 12120), (2424, 11570), (2626, 10680), (2670, 10504), (3030, 9256), (3120, 8989), (3471, 8080), (3560, 7878), (3939, 7120), (4040, 6942), (4272, 6565), (4628, 6060), (4848, 5785), (5252, 5340)]