20145150

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:610

約数の個数: 72

約数和(自身を含む): 54840240

約数和(自身を除く): 34695090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 89, 90, 150, 178, 225, 267, 445, 450, 503, 534, 801, 890, 1006, 1335, 1509, 1602, 2225, 2515, 2670, 3018, 4005, 4450, 4527, 5030, 6675, 7545, 8010, 9054, 12575, 13350, 15090, 20025, 22635, 25150, 37725, 40050, 44767, 45270, 75450, 89534, 113175, 134301, 223835, 226350, 268602, 402903, 447670, 671505, 805806, 1119175, 1343010, 2014515, 2238350, 3357525, 4029030, 6715050, 10072575, 20145150]

約数ペア:

[(1, 20145150), (2, 10072575), (3, 6715050), (5, 4029030), (6, 3357525), (9, 2238350), (10, 2014515), (15, 1343010), (18, 1119175), (25, 805806), (30, 671505), (45, 447670), (50, 402903), (75, 268602), (89, 226350), (90, 223835), (150, 134301), (178, 113175), (225, 89534), (267, 75450), (445, 45270), (450, 44767), (503, 40050), (534, 37725), (801, 25150), (890, 22635), (1006, 20025), (1335, 15090), (1509, 13350), (1602, 12575), (2225, 9054), (2515, 8010), (2670, 7545), (3018, 6675), (4005, 5030), (4450, 4527)]