18154220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 46448640

約数和(自身を除く): 28294420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 47, 62, 70, 89, 94, 124, 140, 155, 178, 188, 217, 235, 310, 329, 356, 434, 445, 470, 620, 623, 658, 868, 890, 940, 1085, 1246, 1316, 1457, 1645, 1780, 2170, 2492, 2759, 2914, 3115, 3290, 4183, 4340, 5518, 5828, 6230, 6580, 7285, 8366, 10199, 11036, 12460, 13795, 14570, 16732, 19313, 20398, 20915, 27590, 29140, 29281, 38626, 40796, 41830, 50995, 55180, 58562, 77252, 83660, 96565, 101990, 117124, 129673, 146405, 193130, 203980, 259346, 292810, 386260, 518692, 585620, 648365, 907711, 1296730, 1815422, 2593460, 3630844, 4538555, 9077110, 18154220]

約数ペア:

[(1, 18154220), (2, 9077110), (4, 4538555), (5, 3630844), (7, 2593460), (10, 1815422), (14, 1296730), (20, 907711), (28, 648365), (31, 585620), (35, 518692), (47, 386260), (62, 292810), (70, 259346), (89, 203980), (94, 193130), (124, 146405), (140, 129673), (155, 117124), (178, 101990), (188, 96565), (217, 83660), (235, 77252), (310, 58562), (329, 55180), (356, 50995), (434, 41830), (445, 40796), (470, 38626), (620, 29281), (623, 29140), (658, 27590), (868, 20915), (890, 20398), (940, 19313), (1085, 16732), (1246, 14570), (1316, 13795), (1457, 12460), (1645, 11036), (1780, 10199), (2170, 8366), (2492, 7285), (2759, 6580), (2914, 6230), (3115, 5828), (3290, 5518), (4183, 4340)]