19800540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2683}}^1$

素因数の和:2739

約数の個数: 72

約数和(自身を含む): 61549488

約数和(自身を除く): 41748948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2683, 3690, 5366, 7380, 8049, 10732, 13415, 16098, 24147, 26830, 32196, 40245, 48294, 53660, 80490, 96588, 110003, 120735, 160980, 220006, 241470, 330009, 440012, 482940, 550015, 660018, 990027, 1100030, 1320036, 1650045, 1980054, 2200060, 3300090, 3960108, 4950135, 6600180, 9900270, 19800540]

約数ペア:

[(1, 19800540), (2, 9900270), (3, 6600180), (4, 4950135), (5, 3960108), (6, 3300090), (9, 2200060), (10, 1980054), (12, 1650045), (15, 1320036), (18, 1100030), (20, 990027), (30, 660018), (36, 550015), (41, 482940), (45, 440012), (60, 330009), (82, 241470), (90, 220006), (123, 160980), (164, 120735), (180, 110003), (205, 96588), (246, 80490), (369, 53660), (410, 48294), (492, 40245), (615, 32196), (738, 26830), (820, 24147), (1230, 16098), (1476, 13415), (1845, 10732), (2460, 8049), (2683, 7380), (3690, 5366)]