210661740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2052

約数の個数: 144

約数和(自身を含む): 694686720

約数和(自身を除く): 484024980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 279, 285, 310, 342, 372, 380, 465, 558, 570, 589, 620, 684, 855, 930, 1116, 1140, 1178, 1395, 1710, 1767, 1860, 1987, 2356, 2790, 2945, 3420, 3534, 3974, 5301, 5580, 5890, 5961, 7068, 7948, 8835, 9935, 10602, 11780, 11922, 17670, 17883, 19870, 21204, 23844, 26505, 29805, 35340, 35766, 37753, 39740, 53010, 59610, 61597, 71532, 75506, 89415, 106020, 113259, 119220, 123194, 151012, 178830, 184791, 188765, 226518, 246388, 307985, 339777, 357660, 369582, 377530, 453036, 554373, 566295, 615970, 679554, 739164, 755060, 923955, 1108746, 1132590, 1170343, 1231940, 1359108, 1698885, 1847910, 2217492, 2265180, 2340686, 2771865, 3397770, 3511029, 3695820, 4681372, 5543730, 5851715, 6795540, 7022058, 10533087, 11087460, 11703430, 14044116, 17555145, 21066174, 23406860, 35110290, 42132348, 52665435, 70220580, 105330870, 210661740]

約数ペア:

[(1, 210661740), (2, 105330870), (3, 70220580), (4, 52665435), (5, 42132348), (6, 35110290), (9, 23406860), (10, 21066174), (12, 17555145), (15, 14044116), (18, 11703430), (19, 11087460), (20, 10533087), (30, 7022058), (31, 6795540), (36, 5851715), (38, 5543730), (45, 4681372), (57, 3695820), (60, 3511029), (62, 3397770), (76, 2771865), (90, 2340686), (93, 2265180), (95, 2217492), (114, 1847910), (124, 1698885), (155, 1359108), (171, 1231940), (180, 1170343), (186, 1132590), (190, 1108746), (228, 923955), (279, 755060), (285, 739164), (310, 679554), (342, 615970), (372, 566295), (380, 554373), (465, 453036), (558, 377530), (570, 369582), (589, 357660), (620, 339777), (684, 307985), (855, 246388), (930, 226518), (1116, 188765), (1140, 184791), (1178, 178830), (1395, 151012), (1710, 123194), (1767, 119220), (1860, 113259), (1987, 106020), (2356, 89415), (2790, 75506), (2945, 71532), (3420, 61597), (3534, 59610), (3974, 53010), (5301, 39740), (5580, 37753), (5890, 35766), (5961, 35340), (7068, 29805), (7948, 26505), (8835, 23844), (9935, 21204), (10602, 19870), (11780, 17883), (11922, 17670)]