257745780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:311

約数の個数: 192

約数和(自身を含む): 841881600

約数和(自身を除く): 584135820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 89, 90, 93, 108, 124, 135, 155, 173, 178, 180, 186, 267, 270, 279, 310, 346, 356, 372, 445, 465, 519, 534, 540, 558, 620, 692, 801, 837, 865, 890, 930, 1038, 1068, 1116, 1335, 1395, 1557, 1602, 1674, 1730, 1780, 1860, 2076, 2403, 2595, 2670, 2759, 2790, 3114, 3204, 3348, 3460, 4005, 4185, 4671, 4806, 5190, 5340, 5363, 5518, 5580, 6228, 7785, 8010, 8277, 8370, 9342, 9612, 10380, 10726, 11036, 12015, 13795, 15397, 15570, 16020, 16089, 16554, 16740, 18684, 21452, 23355, 24030, 24831, 26815, 27590, 30794, 31140, 32178, 33108, 41385, 46191, 46710, 48060, 48267, 49662, 53630, 55180, 61588, 64356, 74493, 76985, 80445, 82770, 92382, 93420, 96534, 99324, 107260, 124155, 138573, 144801, 148986, 153970, 160890, 165540, 184764, 193068, 230955, 241335, 248310, 277146, 289602, 297972, 307940, 321780, 372465, 415719, 461910, 477307, 482670, 496620, 554292, 579204, 692865, 724005, 744930, 831438, 923820, 954614, 965340, 1385730, 1431921, 1448010, 1489860, 1662876, 1909228, 2078595, 2386535, 2771460, 2863842, 2896020, 4157190, 4295763, 4773070, 5727684, 7159605, 8314380, 8591526, 9546140, 12887289, 14319210, 17183052, 21478815, 25774578, 28638420, 42957630, 51549156, 64436445, 85915260, 128872890, 257745780]

約数ペア:

[(1, 257745780), (2, 128872890), (3, 85915260), (4, 64436445), (5, 51549156), (6, 42957630), (9, 28638420), (10, 25774578), (12, 21478815), (15, 17183052), (18, 14319210), (20, 12887289), (27, 9546140), (30, 8591526), (31, 8314380), (36, 7159605), (45, 5727684), (54, 4773070), (60, 4295763), (62, 4157190), (89, 2896020), (90, 2863842), (93, 2771460), (108, 2386535), (124, 2078595), (135, 1909228), (155, 1662876), (173, 1489860), (178, 1448010), (180, 1431921), (186, 1385730), (267, 965340), (270, 954614), (279, 923820), (310, 831438), (346, 744930), (356, 724005), (372, 692865), (445, 579204), (465, 554292), (519, 496620), (534, 482670), (540, 477307), (558, 461910), (620, 415719), (692, 372465), (801, 321780), (837, 307940), (865, 297972), (890, 289602), (930, 277146), (1038, 248310), (1068, 241335), (1116, 230955), (1335, 193068), (1395, 184764), (1557, 165540), (1602, 160890), (1674, 153970), (1730, 148986), (1780, 144801), (1860, 138573), (2076, 124155), (2403, 107260), (2595, 99324), (2670, 96534), (2759, 93420), (2790, 92382), (3114, 82770), (3204, 80445), (3348, 76985), (3460, 74493), (4005, 64356), (4185, 61588), (4671, 55180), (4806, 53630), (5190, 49662), (5340, 48267), (5363, 48060), (5518, 46710), (5580, 46191), (6228, 41385), (7785, 33108), (8010, 32178), (8277, 31140), (8370, 30794), (9342, 27590), (9612, 26815), (10380, 24831), (10726, 24030), (11036, 23355), (12015, 21452), (13795, 18684), (15397, 16740), (15570, 16554), (16020, 16089)]