17780940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{571}}^1$

素因数の和:759

約数の個数: 72

約数和(自身を含む): 54342288

約数和(自身を除く): 36561348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 571, 692, 865, 1038, 1142, 1557, 1713, 1730, 2076, 2284, 2595, 2855, 3114, 3426, 3460, 5139, 5190, 5710, 6228, 6852, 7785, 8565, 10278, 10380, 11420, 15570, 17130, 20556, 25695, 31140, 34260, 51390, 98783, 102780, 197566, 296349, 395132, 493915, 592698, 889047, 987830, 1185396, 1481745, 1778094, 1975660, 2963490, 3556188, 4445235, 5926980, 8890470, 17780940]

約数ペア:

[(1, 17780940), (2, 8890470), (3, 5926980), (4, 4445235), (5, 3556188), (6, 2963490), (9, 1975660), (10, 1778094), (12, 1481745), (15, 1185396), (18, 987830), (20, 889047), (30, 592698), (36, 493915), (45, 395132), (60, 296349), (90, 197566), (173, 102780), (180, 98783), (346, 51390), (519, 34260), (571, 31140), (692, 25695), (865, 20556), (1038, 17130), (1142, 15570), (1557, 11420), (1713, 10380), (1730, 10278), (2076, 8565), (2284, 7785), (2595, 6852), (2855, 6228), (3114, 5710), (3426, 5190), (3460, 5139)]