18409860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:810

約数の個数: 144

約数和(自身を含む): 67267200

約数和(自身を除く): 48857340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 769, 798, 855, 1140, 1197, 1260, 1330, 1538, 1596, 1710, 1995, 2307, 2394, 2660, 3076, 3420, 3845, 3990, 4614, 4788, 5383, 5985, 6921, 7690, 7980, 9228, 10766, 11535, 11970, 13842, 14611, 15380, 16149, 21532, 23070, 23940, 26915, 27684, 29222, 32298, 34605, 43833, 46140, 48447, 53830, 58444, 64596, 69210, 73055, 80745, 87666, 96894, 102277, 107660, 131499, 138420, 146110, 161490, 175332, 193788, 204554, 219165, 242235, 262998, 292220, 306831, 322980, 409108, 438330, 484470, 511385, 525996, 613662, 657495, 876660, 920493, 968940, 1022770, 1227324, 1314990, 1534155, 1840986, 2045540, 2629980, 3068310, 3681972, 4602465, 6136620, 9204930, 18409860]

約数ペア:

[(1, 18409860), (2, 9204930), (3, 6136620), (4, 4602465), (5, 3681972), (6, 3068310), (7, 2629980), (9, 2045540), (10, 1840986), (12, 1534155), (14, 1314990), (15, 1227324), (18, 1022770), (19, 968940), (20, 920493), (21, 876660), (28, 657495), (30, 613662), (35, 525996), (36, 511385), (38, 484470), (42, 438330), (45, 409108), (57, 322980), (60, 306831), (63, 292220), (70, 262998), (76, 242235), (84, 219165), (90, 204554), (95, 193788), (105, 175332), (114, 161490), (126, 146110), (133, 138420), (140, 131499), (171, 107660), (180, 102277), (190, 96894), (210, 87666), (228, 80745), (252, 73055), (266, 69210), (285, 64596), (315, 58444), (342, 53830), (380, 48447), (399, 46140), (420, 43833), (532, 34605), (570, 32298), (630, 29222), (665, 27684), (684, 26915), (769, 23940), (798, 23070), (855, 21532), (1140, 16149), (1197, 15380), (1260, 14611), (1330, 13842), (1538, 11970), (1596, 11535), (1710, 10766), (1995, 9228), (2307, 7980), (2394, 7690), (2660, 6921), (3076, 5985), (3420, 5383), (3845, 4788), (3990, 4614)]