18010980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 60540480

約数和(自身を除く): 42529500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 172, 179, 180, 195, 215, 234, 258, 260, 358, 387, 390, 430, 468, 516, 537, 559, 585, 645, 716, 774, 780, 860, 895, 1074, 1118, 1170, 1290, 1548, 1611, 1677, 1790, 1935, 2148, 2236, 2327, 2340, 2580, 2685, 2795, 3222, 3354, 3580, 3870, 4654, 5031, 5370, 5590, 6444, 6708, 6981, 7697, 7740, 8055, 8385, 9308, 10062, 10740, 11180, 11635, 13962, 15394, 16110, 16770, 20124, 20943, 23091, 23270, 25155, 27924, 30788, 32220, 33540, 34905, 38485, 41886, 46182, 46540, 50310, 69273, 69810, 76970, 83772, 92364, 100061, 100620, 104715, 115455, 138546, 139620, 153940, 200122, 209430, 230910, 277092, 300183, 346365, 400244, 418860, 461820, 500305, 600366, 692730, 900549, 1000610, 1200732, 1385460, 1500915, 1801098, 2001220, 3001830, 3602196, 4502745, 6003660, 9005490, 18010980]

約数ペア:

[(1, 18010980), (2, 9005490), (3, 6003660), (4, 4502745), (5, 3602196), (6, 3001830), (9, 2001220), (10, 1801098), (12, 1500915), (13, 1385460), (15, 1200732), (18, 1000610), (20, 900549), (26, 692730), (30, 600366), (36, 500305), (39, 461820), (43, 418860), (45, 400244), (52, 346365), (60, 300183), (65, 277092), (78, 230910), (86, 209430), (90, 200122), (117, 153940), (129, 139620), (130, 138546), (156, 115455), (172, 104715), (179, 100620), (180, 100061), (195, 92364), (215, 83772), (234, 76970), (258, 69810), (260, 69273), (358, 50310), (387, 46540), (390, 46182), (430, 41886), (468, 38485), (516, 34905), (537, 33540), (559, 32220), (585, 30788), (645, 27924), (716, 25155), (774, 23270), (780, 23091), (860, 20943), (895, 20124), (1074, 16770), (1118, 16110), (1170, 15394), (1290, 13962), (1548, 11635), (1611, 11180), (1677, 10740), (1790, 10062), (1935, 9308), (2148, 8385), (2236, 8055), (2327, 7740), (2340, 7697), (2580, 6981), (2685, 6708), (2795, 6444), (3222, 5590), (3354, 5370), (3580, 5031), (3870, 4654)]