19872540

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:103

約数の個数: 168

約数和(自身を含む): 66104640

約数和(自身を除く): 46232100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 47, 54, 58, 60, 81, 87, 90, 94, 108, 116, 135, 141, 145, 162, 174, 180, 188, 235, 243, 261, 270, 282, 290, 324, 348, 405, 423, 435, 470, 486, 522, 540, 564, 580, 705, 729, 783, 810, 846, 870, 940, 972, 1044, 1215, 1269, 1305, 1363, 1410, 1458, 1566, 1620, 1692, 1740, 2115, 2349, 2430, 2538, 2610, 2726, 2820, 2916, 3132, 3645, 3807, 3915, 4089, 4230, 4698, 4860, 5076, 5220, 5452, 6345, 6815, 7047, 7290, 7614, 7830, 8178, 8460, 9396, 11421, 11745, 12267, 12690, 13630, 14094, 14580, 15228, 15660, 16356, 19035, 20445, 21141, 22842, 23490, 24534, 25380, 27260, 28188, 34263, 35235, 36801, 38070, 40890, 42282, 45684, 46980, 49068, 57105, 61335, 68526, 70470, 73602, 76140, 81780, 84564, 105705, 110403, 114210, 122670, 137052, 140940, 147204, 171315, 184005, 211410, 220806, 228420, 245340, 331209, 342630, 368010, 422820, 441612, 552015, 662418, 685260, 736020, 993627, 1104030, 1324836, 1656045, 1987254, 2208060, 3312090, 3974508, 4968135, 6624180, 9936270, 19872540]

約数ペア:

[(1, 19872540), (2, 9936270), (3, 6624180), (4, 4968135), (5, 3974508), (6, 3312090), (9, 2208060), (10, 1987254), (12, 1656045), (15, 1324836), (18, 1104030), (20, 993627), (27, 736020), (29, 685260), (30, 662418), (36, 552015), (45, 441612), (47, 422820), (54, 368010), (58, 342630), (60, 331209), (81, 245340), (87, 228420), (90, 220806), (94, 211410), (108, 184005), (116, 171315), (135, 147204), (141, 140940), (145, 137052), (162, 122670), (174, 114210), (180, 110403), (188, 105705), (235, 84564), (243, 81780), (261, 76140), (270, 73602), (282, 70470), (290, 68526), (324, 61335), (348, 57105), (405, 49068), (423, 46980), (435, 45684), (470, 42282), (486, 40890), (522, 38070), (540, 36801), (564, 35235), (580, 34263), (705, 28188), (729, 27260), (783, 25380), (810, 24534), (846, 23490), (870, 22842), (940, 21141), (972, 20445), (1044, 19035), (1215, 16356), (1269, 15660), (1305, 15228), (1363, 14580), (1410, 14094), (1458, 13630), (1566, 12690), (1620, 12267), (1692, 11745), (1740, 11421), (2115, 9396), (2349, 8460), (2430, 8178), (2538, 7830), (2610, 7614), (2726, 7290), (2820, 7047), (2916, 6815), (3132, 6345), (3645, 5452), (3807, 5220), (3915, 5076), (4089, 4860), (4230, 4698)]