16471980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:808

約数の個数: 144

約数和(自身を含む): 60540480

約数和(自身を除く): 44068500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 769, 1020, 1071, 1190, 1260, 1428, 1530, 1538, 1785, 2142, 2307, 2380, 3060, 3076, 3570, 3845, 4284, 4614, 5355, 5383, 6921, 7140, 7690, 9228, 10710, 10766, 11535, 13073, 13842, 15380, 16149, 21420, 21532, 23070, 26146, 26915, 27684, 32298, 34605, 39219, 46140, 48447, 52292, 53830, 64596, 65365, 69210, 78438, 80745, 91511, 96894, 107660, 117657, 130730, 138420, 156876, 161490, 183022, 193788, 196095, 235314, 242235, 261460, 274533, 322980, 366044, 392190, 457555, 470628, 484470, 549066, 588285, 784380, 823599, 915110, 968940, 1098132, 1176570, 1372665, 1647198, 1830220, 2353140, 2745330, 3294396, 4117995, 5490660, 8235990, 16471980]

約数ペア:

[(1, 16471980), (2, 8235990), (3, 5490660), (4, 4117995), (5, 3294396), (6, 2745330), (7, 2353140), (9, 1830220), (10, 1647198), (12, 1372665), (14, 1176570), (15, 1098132), (17, 968940), (18, 915110), (20, 823599), (21, 784380), (28, 588285), (30, 549066), (34, 484470), (35, 470628), (36, 457555), (42, 392190), (45, 366044), (51, 322980), (60, 274533), (63, 261460), (68, 242235), (70, 235314), (84, 196095), (85, 193788), (90, 183022), (102, 161490), (105, 156876), (119, 138420), (126, 130730), (140, 117657), (153, 107660), (170, 96894), (180, 91511), (204, 80745), (210, 78438), (238, 69210), (252, 65365), (255, 64596), (306, 53830), (315, 52292), (340, 48447), (357, 46140), (420, 39219), (476, 34605), (510, 32298), (595, 27684), (612, 26915), (630, 26146), (714, 23070), (765, 21532), (769, 21420), (1020, 16149), (1071, 15380), (1190, 13842), (1260, 13073), (1428, 11535), (1530, 10766), (1538, 10710), (1785, 9228), (2142, 7690), (2307, 7140), (2380, 6921), (3060, 5383), (3076, 5355), (3570, 4614), (3845, 4284)]