20609730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 35999550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 83, 89, 90, 93, 155, 166, 178, 186, 249, 267, 279, 310, 415, 445, 465, 498, 534, 558, 747, 801, 830, 890, 930, 1245, 1335, 1395, 1494, 1602, 2490, 2573, 2670, 2759, 2790, 3735, 4005, 5146, 5518, 7387, 7470, 7719, 8010, 8277, 12865, 13795, 14774, 15438, 16554, 22161, 23157, 24831, 25730, 27590, 36935, 38595, 41385, 44322, 46314, 49662, 66483, 73870, 77190, 82770, 110805, 115785, 124155, 132966, 221610, 228997, 231570, 248310, 332415, 457994, 664830, 686991, 1144985, 1373982, 2060973, 2289970, 3434955, 4121946, 6869910, 10304865, 20609730]

約数ペア:

[(1, 20609730), (2, 10304865), (3, 6869910), (5, 4121946), (6, 3434955), (9, 2289970), (10, 2060973), (15, 1373982), (18, 1144985), (30, 686991), (31, 664830), (45, 457994), (62, 332415), (83, 248310), (89, 231570), (90, 228997), (93, 221610), (155, 132966), (166, 124155), (178, 115785), (186, 110805), (249, 82770), (267, 77190), (279, 73870), (310, 66483), (415, 49662), (445, 46314), (465, 44322), (498, 41385), (534, 38595), (558, 36935), (747, 27590), (801, 25730), (830, 24831), (890, 23157), (930, 22161), (1245, 16554), (1335, 15438), (1395, 14774), (1494, 13795), (1602, 12865), (2490, 8277), (2573, 8010), (2670, 7719), (2759, 7470), (2790, 7387), (3735, 5518), (4005, 5146)]