18114980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{193}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 43461432

約数和(自身を除く): 25346452

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 193, 247, 260, 361, 380, 386, 494, 722, 772, 965, 988, 1235, 1444, 1805, 1930, 2470, 2509, 3610, 3667, 3860, 4693, 4940, 5018, 7220, 7334, 9386, 10036, 12545, 14668, 18335, 18772, 23465, 25090, 36670, 46930, 47671, 50180, 69673, 73340, 93860, 95342, 139346, 190684, 238355, 278692, 348365, 476710, 696730, 905749, 953420, 1393460, 1811498, 3622996, 4528745, 9057490, 18114980]

約数ペア:

[(1, 18114980), (2, 9057490), (4, 4528745), (5, 3622996), (10, 1811498), (13, 1393460), (19, 953420), (20, 905749), (26, 696730), (38, 476710), (52, 348365), (65, 278692), (76, 238355), (95, 190684), (130, 139346), (190, 95342), (193, 93860), (247, 73340), (260, 69673), (361, 50180), (380, 47671), (386, 46930), (494, 36670), (722, 25090), (772, 23465), (965, 18772), (988, 18335), (1235, 14668), (1444, 12545), (1805, 10036), (1930, 9386), (2470, 7334), (2509, 7220), (3610, 5018), (3667, 4940), (3860, 4693)]