257448100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1542

約数の個数: 144

約数和(自身を含む): 724259200

約数和(自身を除く): 466811100

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 25, 26, 28, 35, 38, 50, 52, 65, 70, 76, 91, 95, 100, 130, 133, 140, 175, 182, 190, 247, 260, 266, 325, 350, 364, 380, 455, 475, 494, 532, 650, 665, 700, 910, 950, 988, 1235, 1300, 1330, 1489, 1729, 1820, 1900, 2275, 2470, 2660, 2978, 3325, 3458, 4550, 4940, 5956, 6175, 6650, 6916, 7445, 8645, 9100, 10423, 12350, 13300, 14890, 17290, 19357, 20846, 24700, 28291, 29780, 34580, 37225, 38714, 41692, 43225, 52115, 56582, 74450, 77428, 86450, 96785, 104230, 113164, 135499, 141455, 148900, 172900, 193570, 198037, 208460, 260575, 270998, 282910, 367783, 387140, 396074, 483925, 521150, 541996, 565820, 677495, 707275, 735566, 792148, 967850, 990185, 1042300, 1354990, 1414550, 1471132, 1838915, 1935700, 1980370, 2574481, 2709980, 2829100, 3387475, 3677830, 3960740, 4950925, 5148962, 6774950, 7355660, 9194575, 9901850, 10297924, 12872405, 13549900, 18389150, 19803700, 25744810, 36778300, 51489620, 64362025, 128724050, 257448100]

約数ペア:

[(1, 257448100), (2, 128724050), (4, 64362025), (5, 51489620), (7, 36778300), (10, 25744810), (13, 19803700), (14, 18389150), (19, 13549900), (20, 12872405), (25, 10297924), (26, 9901850), (28, 9194575), (35, 7355660), (38, 6774950), (50, 5148962), (52, 4950925), (65, 3960740), (70, 3677830), (76, 3387475), (91, 2829100), (95, 2709980), (100, 2574481), (130, 1980370), (133, 1935700), (140, 1838915), (175, 1471132), (182, 1414550), (190, 1354990), (247, 1042300), (260, 990185), (266, 967850), (325, 792148), (350, 735566), (364, 707275), (380, 677495), (455, 565820), (475, 541996), (494, 521150), (532, 483925), (650, 396074), (665, 387140), (700, 367783), (910, 282910), (950, 270998), (988, 260575), (1235, 208460), (1300, 198037), (1330, 193570), (1489, 172900), (1729, 148900), (1820, 141455), (1900, 135499), (2275, 113164), (2470, 104230), (2660, 96785), (2978, 86450), (3325, 77428), (3458, 74450), (4550, 56582), (4940, 52115), (5956, 43225), (6175, 41692), (6650, 38714), (6916, 37225), (7445, 34580), (8645, 29780), (9100, 28291), (10423, 24700), (12350, 20846), (13300, 19357), (14890, 17290)]