101991760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{349}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 257014800

約数和(自身を除く): 155023040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 281, 349, 520, 562, 698, 1040, 1124, 1396, 1405, 1745, 2248, 2792, 2810, 3490, 3653, 4496, 4537, 5584, 5620, 6980, 7306, 9074, 11240, 13960, 14612, 18148, 18265, 22480, 22685, 27920, 29224, 36296, 36530, 45370, 58448, 72592, 73060, 90740, 98069, 146120, 181480, 196138, 292240, 362960, 392276, 490345, 784552, 980690, 1274897, 1569104, 1961380, 2549794, 3922760, 5099588, 6374485, 7845520, 10199176, 12748970, 20398352, 25497940, 50995880, 101991760]

約数ペア:

[(1, 101991760), (2, 50995880), (4, 25497940), (5, 20398352), (8, 12748970), (10, 10199176), (13, 7845520), (16, 6374485), (20, 5099588), (26, 3922760), (40, 2549794), (52, 1961380), (65, 1569104), (80, 1274897), (104, 980690), (130, 784552), (208, 490345), (260, 392276), (281, 362960), (349, 292240), (520, 196138), (562, 181480), (698, 146120), (1040, 98069), (1124, 90740), (1396, 73060), (1405, 72592), (1745, 58448), (2248, 45370), (2792, 36530), (2810, 36296), (3490, 29224), (3653, 27920), (4496, 22685), (4537, 22480), (5584, 18265), (5620, 18148), (6980, 14612), (7306, 13960), (9074, 11240)]