999395460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{2039}}^1$

素因数の和:2450

約数の個数: 144

約数和(自身を含む): 3475180800

約数和(自身を除く): 2475785340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 389, 420, 630, 778, 1167, 1260, 1556, 1945, 2039, 2334, 2723, 3501, 3890, 4078, 4668, 5446, 5835, 6117, 7002, 7780, 8156, 8169, 10195, 10892, 11670, 12234, 13615, 14004, 14273, 16338, 17505, 18351, 20390, 23340, 24468, 24507, 27230, 28546, 30585, 32676, 35010, 36702, 40780, 40845, 42819, 49014, 54460, 57092, 61170, 70020, 71365, 73404, 81690, 85638, 91755, 98028, 122340, 122535, 128457, 142730, 163380, 171276, 183510, 214095, 245070, 256914, 285460, 367020, 428190, 490140, 513828, 642285, 793171, 856380, 1284570, 1586342, 2379513, 2569140, 3172684, 3965855, 4759026, 5552197, 7138539, 7931710, 9518052, 11104394, 11897565, 14277078, 15863420, 16656591, 22208788, 23795130, 27760985, 28554156, 33313182, 35692695, 47590260, 49969773, 55521970, 66626364, 71385390, 83282955, 99939546, 111043940, 142770780, 166565910, 199879092, 249848865, 333131820, 499697730, 999395460]

約数ペア:

[(1, 999395460), (2, 499697730), (3, 333131820), (4, 249848865), (5, 199879092), (6, 166565910), (7, 142770780), (9, 111043940), (10, 99939546), (12, 83282955), (14, 71385390), (15, 66626364), (18, 55521970), (20, 49969773), (21, 47590260), (28, 35692695), (30, 33313182), (35, 28554156), (36, 27760985), (42, 23795130), (45, 22208788), (60, 16656591), (63, 15863420), (70, 14277078), (84, 11897565), (90, 11104394), (105, 9518052), (126, 7931710), (140, 7138539), (180, 5552197), (210, 4759026), (252, 3965855), (315, 3172684), (389, 2569140), (420, 2379513), (630, 1586342), (778, 1284570), (1167, 856380), (1260, 793171), (1556, 642285), (1945, 513828), (2039, 490140), (2334, 428190), (2723, 367020), (3501, 285460), (3890, 256914), (4078, 245070), (4668, 214095), (5446, 183510), (5835, 171276), (6117, 163380), (7002, 142730), (7780, 128457), (8156, 122535), (8169, 122340), (10195, 98028), (10892, 91755), (11670, 85638), (12234, 81690), (13615, 73404), (14004, 71365), (14273, 70020), (16338, 61170), (17505, 57092), (18351, 54460), (20390, 49014), (23340, 42819), (24468, 40845), (24507, 40780), (27230, 36702), (28546, 35010), (30585, 32676)]