339712880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:355

約数の個数: 160

約数和(自身を含む): 902942208

約数和(自身を除く): 563229328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 41, 52, 62, 65, 80, 82, 104, 124, 130, 155, 164, 205, 208, 248, 257, 260, 310, 328, 403, 410, 496, 514, 520, 533, 620, 656, 806, 820, 1028, 1040, 1066, 1240, 1271, 1285, 1612, 1640, 2015, 2056, 2132, 2480, 2542, 2570, 2665, 3224, 3280, 3341, 4030, 4112, 4264, 5084, 5140, 5330, 6355, 6448, 6682, 7967, 8060, 8528, 10168, 10280, 10537, 10660, 12710, 13364, 15934, 16120, 16523, 16705, 20336, 20560, 21074, 21320, 25420, 26728, 31868, 32240, 33046, 33410, 39835, 42148, 42640, 50840, 52685, 53456, 63736, 66092, 66820, 79670, 82615, 84296, 101680, 103571, 105370, 127472, 132184, 133640, 136981, 159340, 165230, 168592, 207142, 210740, 264368, 267280, 273962, 318680, 326647, 330460, 414284, 421480, 517855, 547924, 637360, 653294, 660920, 684905, 828568, 842960, 1035710, 1095848, 1306588, 1321840, 1369810, 1633235, 1657136, 2071420, 2191696, 2613176, 2739620, 3266470, 4142840, 4246411, 5226352, 5479240, 6532940, 8285680, 8492822, 10958480, 13065880, 16985644, 21232055, 26131760, 33971288, 42464110, 67942576, 84928220, 169856440, 339712880]

約数ペア:

[(1, 339712880), (2, 169856440), (4, 84928220), (5, 67942576), (8, 42464110), (10, 33971288), (13, 26131760), (16, 21232055), (20, 16985644), (26, 13065880), (31, 10958480), (40, 8492822), (41, 8285680), (52, 6532940), (62, 5479240), (65, 5226352), (80, 4246411), (82, 4142840), (104, 3266470), (124, 2739620), (130, 2613176), (155, 2191696), (164, 2071420), (205, 1657136), (208, 1633235), (248, 1369810), (257, 1321840), (260, 1306588), (310, 1095848), (328, 1035710), (403, 842960), (410, 828568), (496, 684905), (514, 660920), (520, 653294), (533, 637360), (620, 547924), (656, 517855), (806, 421480), (820, 414284), (1028, 330460), (1040, 326647), (1066, 318680), (1240, 273962), (1271, 267280), (1285, 264368), (1612, 210740), (1640, 207142), (2015, 168592), (2056, 165230), (2132, 159340), (2480, 136981), (2542, 133640), (2570, 132184), (2665, 127472), (3224, 105370), (3280, 103571), (3341, 101680), (4030, 84296), (4112, 82615), (4264, 79670), (5084, 66820), (5140, 66092), (5330, 63736), (6355, 53456), (6448, 52685), (6682, 50840), (7967, 42640), (8060, 42148), (8528, 39835), (10168, 33410), (10280, 33046), (10537, 32240), (10660, 31868), (12710, 26728), (13364, 25420), (15934, 21320), (16120, 21074), (16523, 20560), (16705, 20336)]