17978220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 60873120

約数和(自身を除く): 42894900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 169, 180, 195, 197, 234, 260, 270, 338, 351, 390, 394, 468, 507, 540, 585, 591, 676, 702, 780, 788, 845, 985, 1014, 1170, 1182, 1404, 1521, 1690, 1755, 1773, 1970, 2028, 2340, 2364, 2535, 2561, 2955, 3042, 3380, 3510, 3546, 3940, 4563, 5070, 5122, 5319, 5910, 6084, 7020, 7092, 7605, 7683, 8865, 9126, 10140, 10244, 10638, 11820, 12805, 15210, 15366, 17730, 18252, 21276, 22815, 23049, 25610, 26595, 30420, 30732, 33293, 35460, 38415, 45630, 46098, 51220, 53190, 66586, 69147, 76830, 91260, 92196, 99879, 106380, 115245, 133172, 138294, 153660, 166465, 199758, 230490, 276588, 299637, 332930, 345735, 399516, 460980, 499395, 599274, 665860, 691470, 898911, 998790, 1198548, 1382940, 1498185, 1797822, 1997580, 2996370, 3595644, 4494555, 5992740, 8989110, 17978220]

約数ペア:

[(1, 17978220), (2, 8989110), (3, 5992740), (4, 4494555), (5, 3595644), (6, 2996370), (9, 1997580), (10, 1797822), (12, 1498185), (13, 1382940), (15, 1198548), (18, 998790), (20, 898911), (26, 691470), (27, 665860), (30, 599274), (36, 499395), (39, 460980), (45, 399516), (52, 345735), (54, 332930), (60, 299637), (65, 276588), (78, 230490), (90, 199758), (108, 166465), (117, 153660), (130, 138294), (135, 133172), (156, 115245), (169, 106380), (180, 99879), (195, 92196), (197, 91260), (234, 76830), (260, 69147), (270, 66586), (338, 53190), (351, 51220), (390, 46098), (394, 45630), (468, 38415), (507, 35460), (540, 33293), (585, 30732), (591, 30420), (676, 26595), (702, 25610), (780, 23049), (788, 22815), (845, 21276), (985, 18252), (1014, 17730), (1170, 15366), (1182, 15210), (1404, 12805), (1521, 11820), (1690, 10638), (1755, 10244), (1773, 10140), (1970, 9126), (2028, 8865), (2340, 7683), (2364, 7605), (2535, 7092), (2561, 7020), (2955, 6084), (3042, 5910), (3380, 5319), (3510, 5122), (3546, 5070), (3940, 4563)]