242065720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:377

約数の個数: 128

約数和(自身を含む): 628689600

約数和(自身を除く): 386623880

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 139, 170, 197, 221, 260, 278, 340, 394, 442, 520, 556, 680, 695, 788, 884, 985, 1105, 1112, 1390, 1576, 1768, 1807, 1970, 2210, 2363, 2561, 2780, 3349, 3614, 3940, 4420, 4726, 5122, 5560, 6698, 7228, 7880, 8840, 9035, 9452, 10244, 11815, 12805, 13396, 14456, 16745, 18070, 18904, 20488, 23630, 25610, 26792, 27383, 30719, 33490, 36140, 43537, 47260, 51220, 54766, 61438, 66980, 72280, 87074, 94520, 102440, 109532, 122876, 133960, 136915, 153595, 174148, 217685, 219064, 245752, 273830, 307190, 348296, 355979, 435370, 465511, 547660, 614380, 711958, 870740, 931022, 1095320, 1228760, 1423916, 1741480, 1779895, 1862044, 2327555, 2847832, 3559790, 3724088, 4655110, 6051643, 7119580, 9310220, 12103286, 14239160, 18620440, 24206572, 30258215, 48413144, 60516430, 121032860, 242065720]

約数ペア:

[(1, 242065720), (2, 121032860), (4, 60516430), (5, 48413144), (8, 30258215), (10, 24206572), (13, 18620440), (17, 14239160), (20, 12103286), (26, 9310220), (34, 7119580), (40, 6051643), (52, 4655110), (65, 3724088), (68, 3559790), (85, 2847832), (104, 2327555), (130, 1862044), (136, 1779895), (139, 1741480), (170, 1423916), (197, 1228760), (221, 1095320), (260, 931022), (278, 870740), (340, 711958), (394, 614380), (442, 547660), (520, 465511), (556, 435370), (680, 355979), (695, 348296), (788, 307190), (884, 273830), (985, 245752), (1105, 219064), (1112, 217685), (1390, 174148), (1576, 153595), (1768, 136915), (1807, 133960), (1970, 122876), (2210, 109532), (2363, 102440), (2561, 94520), (2780, 87074), (3349, 72280), (3614, 66980), (3940, 61438), (4420, 54766), (4726, 51220), (5122, 47260), (5560, 43537), (6698, 36140), (7228, 33490), (7880, 30719), (8840, 27383), (9035, 26792), (9452, 25610), (10244, 23630), (11815, 20488), (12805, 18904), (13396, 18070), (14456, 16745)]