251158960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:231

約数の個数: 160

約数和(自身を含む): 662582592

約数和(自身を除く): 411423632

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 61, 65, 74, 80, 104, 107, 122, 130, 148, 185, 208, 214, 244, 260, 296, 305, 370, 428, 481, 488, 520, 535, 592, 610, 740, 793, 856, 962, 976, 1040, 1070, 1220, 1391, 1480, 1586, 1712, 1924, 2140, 2257, 2405, 2440, 2782, 2960, 3172, 3848, 3959, 3965, 4280, 4514, 4810, 4880, 5564, 6344, 6527, 6955, 7696, 7918, 7930, 8560, 9028, 9620, 11128, 11285, 12688, 13054, 13910, 15836, 15860, 18056, 19240, 19795, 22256, 22570, 26108, 27820, 29341, 31672, 31720, 32635, 36112, 38480, 39590, 45140, 51467, 52216, 55640, 58682, 63344, 63440, 65270, 79180, 84851, 90280, 102934, 104432, 111280, 117364, 130540, 146705, 158360, 169702, 180560, 205868, 234728, 241499, 257335, 261080, 293410, 316720, 339404, 411736, 424255, 469456, 482998, 514670, 522160, 586820, 678808, 823472, 848510, 965996, 1029340, 1173640, 1207495, 1357616, 1697020, 1931992, 2058680, 2347280, 2414990, 3139487, 3394040, 3863984, 4117360, 4829980, 6278974, 6788080, 9659960, 12557948, 15697435, 19319920, 25115896, 31394870, 50231792, 62789740, 125579480, 251158960]

約数ペア:

[(1, 251158960), (2, 125579480), (4, 62789740), (5, 50231792), (8, 31394870), (10, 25115896), (13, 19319920), (16, 15697435), (20, 12557948), (26, 9659960), (37, 6788080), (40, 6278974), (52, 4829980), (61, 4117360), (65, 3863984), (74, 3394040), (80, 3139487), (104, 2414990), (107, 2347280), (122, 2058680), (130, 1931992), (148, 1697020), (185, 1357616), (208, 1207495), (214, 1173640), (244, 1029340), (260, 965996), (296, 848510), (305, 823472), (370, 678808), (428, 586820), (481, 522160), (488, 514670), (520, 482998), (535, 469456), (592, 424255), (610, 411736), (740, 339404), (793, 316720), (856, 293410), (962, 261080), (976, 257335), (1040, 241499), (1070, 234728), (1220, 205868), (1391, 180560), (1480, 169702), (1586, 158360), (1712, 146705), (1924, 130540), (2140, 117364), (2257, 111280), (2405, 104432), (2440, 102934), (2782, 90280), (2960, 84851), (3172, 79180), (3848, 65270), (3959, 63440), (3965, 63344), (4280, 58682), (4514, 55640), (4810, 52216), (4880, 51467), (5564, 45140), (6344, 39590), (6527, 38480), (6955, 36112), (7696, 32635), (7918, 31720), (7930, 31672), (8560, 29341), (9028, 27820), (9620, 26108), (11128, 22570), (11285, 22256), (12688, 19795), (13054, 19240), (13910, 18056), (15836, 15860)]