720995940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1471}}^1$

素因数の和:1882

約数の個数: 144

約数和(自身を含む): 2507581440

約数和(自身を除く): 1786585500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 389, 420, 630, 778, 1167, 1260, 1471, 1556, 1945, 2334, 2723, 2942, 3501, 3890, 4413, 4668, 5446, 5835, 5884, 7002, 7355, 7780, 8169, 8826, 10297, 10892, 11670, 13239, 13615, 14004, 14710, 16338, 17505, 17652, 20594, 22065, 23340, 24507, 26478, 27230, 29420, 30891, 32676, 35010, 40845, 41188, 44130, 49014, 51485, 52956, 54460, 61782, 66195, 70020, 81690, 88260, 92673, 98028, 102970, 122535, 123564, 132390, 154455, 163380, 185346, 205940, 245070, 264780, 308910, 370692, 463365, 490140, 572219, 617820, 926730, 1144438, 1716657, 1853460, 2288876, 2861095, 3433314, 4005533, 5149971, 5722190, 6866628, 8011066, 8583285, 10299942, 11444380, 12016599, 16022132, 17166570, 20027665, 20599884, 24033198, 25749855, 34333140, 36049797, 40055330, 48066396, 51499710, 60082995, 72099594, 80110660, 102999420, 120165990, 144199188, 180248985, 240331980, 360497970, 720995940]

約数ペア:

[(1, 720995940), (2, 360497970), (3, 240331980), (4, 180248985), (5, 144199188), (6, 120165990), (7, 102999420), (9, 80110660), (10, 72099594), (12, 60082995), (14, 51499710), (15, 48066396), (18, 40055330), (20, 36049797), (21, 34333140), (28, 25749855), (30, 24033198), (35, 20599884), (36, 20027665), (42, 17166570), (45, 16022132), (60, 12016599), (63, 11444380), (70, 10299942), (84, 8583285), (90, 8011066), (105, 6866628), (126, 5722190), (140, 5149971), (180, 4005533), (210, 3433314), (252, 2861095), (315, 2288876), (389, 1853460), (420, 1716657), (630, 1144438), (778, 926730), (1167, 617820), (1260, 572219), (1471, 490140), (1556, 463365), (1945, 370692), (2334, 308910), (2723, 264780), (2942, 245070), (3501, 205940), (3890, 185346), (4413, 163380), (4668, 154455), (5446, 132390), (5835, 123564), (5884, 122535), (7002, 102970), (7355, 98028), (7780, 92673), (8169, 88260), (8826, 81690), (10297, 70020), (10892, 66195), (11670, 61782), (13239, 54460), (13615, 52956), (14004, 51485), (14710, 49014), (16338, 44130), (17505, 41188), (17652, 40845), (20594, 35010), (22065, 32676), (23340, 30891), (24507, 29420), (26478, 27230)]