87754140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{977}}^1$

素因数の和:1491

約数の個数: 72

約数和(自身を含む): 266994000

約数和(自身を除く): 179239860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 977, 998, 1497, 1954, 1996, 2495, 2931, 2994, 3908, 4491, 4885, 4990, 5862, 5988, 7485, 8793, 8982, 9770, 9980, 11724, 14655, 14970, 17586, 17964, 19540, 22455, 29310, 29940, 35172, 43965, 44910, 58620, 87930, 89820, 175860, 487523, 975046, 1462569, 1950092, 2437615, 2925138, 4387707, 4875230, 5850276, 7312845, 8775414, 9750460, 14625690, 17550828, 21938535, 29251380, 43877070, 87754140]

約数ペア:

[(1, 87754140), (2, 43877070), (3, 29251380), (4, 21938535), (5, 17550828), (6, 14625690), (9, 9750460), (10, 8775414), (12, 7312845), (15, 5850276), (18, 4875230), (20, 4387707), (30, 2925138), (36, 2437615), (45, 1950092), (60, 1462569), (90, 975046), (180, 487523), (499, 175860), (977, 89820), (998, 87930), (1497, 58620), (1954, 44910), (1996, 43965), (2495, 35172), (2931, 29940), (2994, 29310), (3908, 22455), (4491, 19540), (4885, 17964), (4990, 17586), (5862, 14970), (5988, 14655), (7485, 11724), (8793, 9980), (8982, 9770)]