258735920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:116

約数の個数: 180

約数和(自身を含む): 696187584

約数和(自身を除く): 437451664

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 80, 85, 95, 124, 136, 152, 155, 170, 190, 248, 272, 289, 304, 310, 323, 340, 361, 380, 496, 527, 578, 589, 620, 646, 680, 722, 760, 1054, 1156, 1178, 1240, 1292, 1360, 1444, 1445, 1520, 1615, 1805, 2108, 2312, 2356, 2480, 2584, 2635, 2888, 2890, 2945, 3230, 3610, 4216, 4624, 4712, 5168, 5270, 5491, 5776, 5780, 5890, 6137, 6460, 7220, 8432, 8959, 9424, 10013, 10540, 10982, 11191, 11560, 11780, 12274, 12920, 14440, 17918, 20026, 21080, 21964, 22382, 23120, 23560, 24548, 25840, 27455, 28880, 30685, 35836, 40052, 42160, 43928, 44764, 44795, 47120, 49096, 50065, 54910, 55955, 61370, 71672, 80104, 87856, 89528, 89590, 98192, 100130, 104329, 109820, 111910, 122740, 143344, 160208, 170221, 179056, 179180, 190247, 200260, 208658, 219640, 223820, 245480, 340442, 358360, 380494, 400520, 417316, 439280, 447640, 490960, 521645, 680884, 716720, 760988, 801040, 834632, 851105, 895280, 951235, 1043290, 1361768, 1521976, 1669264, 1702210, 1902470, 2086580, 2723536, 3043952, 3234199, 3404420, 3804940, 4173160, 6468398, 6808840, 7609880, 8346320, 12936796, 13617680, 15219760, 16170995, 25873592, 32341990, 51747184, 64683980, 129367960, 258735920]

約数ペア:

[(1, 258735920), (2, 129367960), (4, 64683980), (5, 51747184), (8, 32341990), (10, 25873592), (16, 16170995), (17, 15219760), (19, 13617680), (20, 12936796), (31, 8346320), (34, 7609880), (38, 6808840), (40, 6468398), (62, 4173160), (68, 3804940), (76, 3404420), (80, 3234199), (85, 3043952), (95, 2723536), (124, 2086580), (136, 1902470), (152, 1702210), (155, 1669264), (170, 1521976), (190, 1361768), (248, 1043290), (272, 951235), (289, 895280), (304, 851105), (310, 834632), (323, 801040), (340, 760988), (361, 716720), (380, 680884), (496, 521645), (527, 490960), (578, 447640), (589, 439280), (620, 417316), (646, 400520), (680, 380494), (722, 358360), (760, 340442), (1054, 245480), (1156, 223820), (1178, 219640), (1240, 208658), (1292, 200260), (1360, 190247), (1444, 179180), (1445, 179056), (1520, 170221), (1615, 160208), (1805, 143344), (2108, 122740), (2312, 111910), (2356, 109820), (2480, 104329), (2584, 100130), (2635, 98192), (2888, 89590), (2890, 89528), (2945, 87856), (3230, 80104), (3610, 71672), (4216, 61370), (4624, 55955), (4712, 54910), (5168, 50065), (5270, 49096), (5491, 47120), (5776, 44795), (5780, 44764), (5890, 43928), (6137, 42160), (6460, 40052), (7220, 35836), (8432, 30685), (8959, 28880), (9424, 27455), (10013, 25840), (10540, 24548), (10982, 23560), (11191, 23120), (11560, 22382), (11780, 21964), (12274, 21080), (12920, 20026), (14440, 17918)]