251113720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{307}}^1$

素因数の和:366

約数の個数: 144

約数和(自身を含む): 674677080

約数和(自身を除く): 423563360

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 121, 130, 143, 169, 220, 242, 260, 286, 307, 338, 440, 484, 520, 572, 605, 614, 676, 715, 845, 968, 1144, 1210, 1228, 1352, 1430, 1535, 1573, 1690, 1859, 2420, 2456, 2860, 3070, 3146, 3377, 3380, 3718, 3991, 4840, 5720, 6140, 6292, 6754, 6760, 7436, 7865, 7982, 9295, 12280, 12584, 13508, 14872, 15730, 15964, 16885, 18590, 19955, 20449, 27016, 31460, 31928, 33770, 37147, 37180, 39910, 40898, 43901, 51883, 62920, 67540, 74294, 74360, 79820, 81796, 87802, 102245, 103766, 135080, 148588, 159640, 163592, 175604, 185735, 204490, 207532, 219505, 259415, 297176, 351208, 371470, 408980, 415064, 439010, 482911, 518830, 570713, 742940, 817960, 878020, 965822, 1037660, 1141426, 1485880, 1756040, 1931644, 2075320, 2282852, 2414555, 2853565, 3863288, 4565704, 4829110, 5707130, 6277843, 9658220, 11414260, 12555686, 19316440, 22828520, 25111372, 31389215, 50222744, 62778430, 125556860, 251113720]

約数ペア:

[(1, 251113720), (2, 125556860), (4, 62778430), (5, 50222744), (8, 31389215), (10, 25111372), (11, 22828520), (13, 19316440), (20, 12555686), (22, 11414260), (26, 9658220), (40, 6277843), (44, 5707130), (52, 4829110), (55, 4565704), (65, 3863288), (88, 2853565), (104, 2414555), (110, 2282852), (121, 2075320), (130, 1931644), (143, 1756040), (169, 1485880), (220, 1141426), (242, 1037660), (260, 965822), (286, 878020), (307, 817960), (338, 742940), (440, 570713), (484, 518830), (520, 482911), (572, 439010), (605, 415064), (614, 408980), (676, 371470), (715, 351208), (845, 297176), (968, 259415), (1144, 219505), (1210, 207532), (1228, 204490), (1352, 185735), (1430, 175604), (1535, 163592), (1573, 159640), (1690, 148588), (1859, 135080), (2420, 103766), (2456, 102245), (2860, 87802), (3070, 81796), (3146, 79820), (3377, 74360), (3380, 74294), (3718, 67540), (3991, 62920), (4840, 51883), (5720, 43901), (6140, 40898), (6292, 39910), (6754, 37180), (6760, 37147), (7436, 33770), (7865, 31928), (7982, 31460), (9295, 27016), (12280, 20449), (12584, 19955), (13508, 18590), (14872, 16885), (15730, 15964)]