19668420

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 168

約数和(自身を含む): 66104640

約数和(自身を除く): 46436220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 71, 76, 81, 90, 95, 108, 114, 135, 142, 162, 171, 180, 190, 213, 228, 243, 270, 284, 285, 324, 342, 355, 380, 405, 426, 486, 513, 540, 570, 639, 684, 710, 729, 810, 852, 855, 972, 1026, 1065, 1140, 1215, 1278, 1349, 1420, 1458, 1539, 1620, 1710, 1917, 2052, 2130, 2430, 2556, 2565, 2698, 2916, 3078, 3195, 3420, 3645, 3834, 4047, 4260, 4617, 4860, 5130, 5396, 5751, 6156, 6390, 6745, 7290, 7668, 7695, 8094, 9234, 9585, 10260, 11502, 12141, 12780, 13490, 13851, 14580, 15390, 16188, 17253, 18468, 19170, 20235, 23004, 23085, 24282, 26980, 27702, 28755, 30780, 34506, 36423, 38340, 40470, 46170, 48564, 51759, 55404, 57510, 60705, 69012, 69255, 72846, 80940, 86265, 92340, 103518, 109269, 115020, 121410, 138510, 145692, 172530, 182115, 207036, 218538, 242820, 258795, 277020, 327807, 345060, 364230, 437076, 517590, 546345, 655614, 728460, 983421, 1035180, 1092690, 1311228, 1639035, 1966842, 2185380, 3278070, 3933684, 4917105, 6556140, 9834210, 19668420]

約数ペア:

[(1, 19668420), (2, 9834210), (3, 6556140), (4, 4917105), (5, 3933684), (6, 3278070), (9, 2185380), (10, 1966842), (12, 1639035), (15, 1311228), (18, 1092690), (19, 1035180), (20, 983421), (27, 728460), (30, 655614), (36, 546345), (38, 517590), (45, 437076), (54, 364230), (57, 345060), (60, 327807), (71, 277020), (76, 258795), (81, 242820), (90, 218538), (95, 207036), (108, 182115), (114, 172530), (135, 145692), (142, 138510), (162, 121410), (171, 115020), (180, 109269), (190, 103518), (213, 92340), (228, 86265), (243, 80940), (270, 72846), (284, 69255), (285, 69012), (324, 60705), (342, 57510), (355, 55404), (380, 51759), (405, 48564), (426, 46170), (486, 40470), (513, 38340), (540, 36423), (570, 34506), (639, 30780), (684, 28755), (710, 27702), (729, 26980), (810, 24282), (852, 23085), (855, 23004), (972, 20235), (1026, 19170), (1065, 18468), (1140, 17253), (1215, 16188), (1278, 15390), (1349, 14580), (1420, 13851), (1458, 13490), (1539, 12780), (1620, 12141), (1710, 11502), (1917, 10260), (2052, 9585), (2130, 9234), (2430, 8094), (2556, 7695), (2565, 7668), (2698, 7290), (2916, 6745), (3078, 6390), (3195, 6156), (3420, 5751), (3645, 5396), (3834, 5130), (4047, 4860), (4260, 4617)]