81972450

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:569

約数の個数: 144

約数和(自身を含む): 256965696

約数和(自身を除く): 174993246

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 53, 63, 70, 75, 90, 105, 106, 126, 150, 159, 175, 210, 225, 265, 315, 318, 350, 371, 450, 477, 491, 525, 530, 630, 742, 795, 954, 982, 1050, 1113, 1325, 1473, 1575, 1590, 1855, 2226, 2385, 2455, 2650, 2946, 3150, 3339, 3437, 3710, 3975, 4419, 4770, 4910, 5565, 6678, 6874, 7365, 7950, 8838, 9275, 10311, 11130, 11925, 12275, 14730, 16695, 17185, 18550, 20622, 22095, 23850, 24550, 26023, 27825, 30933, 33390, 34370, 36825, 44190, 51555, 52046, 55650, 61866, 73650, 78069, 83475, 85925, 103110, 110475, 130115, 154665, 156138, 166950, 171850, 182161, 220950, 234207, 257775, 260230, 309330, 364322, 390345, 468414, 515550, 546483, 650575, 773325, 780690, 910805, 1092966, 1171035, 1301150, 1546650, 1639449, 1821610, 1951725, 2342070, 2732415, 3278898, 3903450, 4554025, 5464830, 5855175, 8197245, 9108050, 11710350, 13662075, 16394490, 27324150, 40986225, 81972450]

約数ペア:

[(1, 81972450), (2, 40986225), (3, 27324150), (5, 16394490), (6, 13662075), (7, 11710350), (9, 9108050), (10, 8197245), (14, 5855175), (15, 5464830), (18, 4554025), (21, 3903450), (25, 3278898), (30, 2732415), (35, 2342070), (42, 1951725), (45, 1821610), (50, 1639449), (53, 1546650), (63, 1301150), (70, 1171035), (75, 1092966), (90, 910805), (105, 780690), (106, 773325), (126, 650575), (150, 546483), (159, 515550), (175, 468414), (210, 390345), (225, 364322), (265, 309330), (315, 260230), (318, 257775), (350, 234207), (371, 220950), (450, 182161), (477, 171850), (491, 166950), (525, 156138), (530, 154665), (630, 130115), (742, 110475), (795, 103110), (954, 85925), (982, 83475), (1050, 78069), (1113, 73650), (1325, 61866), (1473, 55650), (1575, 52046), (1590, 51555), (1855, 44190), (2226, 36825), (2385, 34370), (2455, 33390), (2650, 30933), (2946, 27825), (3150, 26023), (3339, 24550), (3437, 23850), (3710, 22095), (3975, 20622), (4419, 18550), (4770, 17185), (4910, 16695), (5565, 14730), (6678, 12275), (6874, 11925), (7365, 11130), (7950, 10311), (8838, 9275)]