72712980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 231888384

約数和(自身を除く): 159175404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 83, 90, 93, 124, 155, 157, 166, 180, 186, 249, 279, 310, 314, 332, 372, 415, 465, 471, 498, 558, 620, 628, 747, 785, 830, 930, 942, 996, 1116, 1245, 1395, 1413, 1494, 1570, 1660, 1860, 1884, 2355, 2490, 2573, 2790, 2826, 2988, 3140, 3735, 4710, 4867, 4980, 5146, 5580, 5652, 7065, 7470, 7719, 9420, 9734, 10292, 12865, 13031, 14130, 14601, 14940, 15438, 19468, 23157, 24335, 25730, 26062, 28260, 29202, 30876, 38595, 39093, 43803, 46314, 48670, 51460, 52124, 58404, 65155, 73005, 77190, 78186, 87606, 92628, 97340, 115785, 117279, 130310, 146010, 154380, 156372, 175212, 195465, 219015, 231570, 234558, 260620, 292020, 390930, 403961, 438030, 463140, 469116, 586395, 781860, 807922, 876060, 1172790, 1211883, 1615844, 2019805, 2345580, 2423766, 3635649, 4039610, 4847532, 6059415, 7271298, 8079220, 12118830, 14542596, 18178245, 24237660, 36356490, 72712980]

約数ペア:

[(1, 72712980), (2, 36356490), (3, 24237660), (4, 18178245), (5, 14542596), (6, 12118830), (9, 8079220), (10, 7271298), (12, 6059415), (15, 4847532), (18, 4039610), (20, 3635649), (30, 2423766), (31, 2345580), (36, 2019805), (45, 1615844), (60, 1211883), (62, 1172790), (83, 876060), (90, 807922), (93, 781860), (124, 586395), (155, 469116), (157, 463140), (166, 438030), (180, 403961), (186, 390930), (249, 292020), (279, 260620), (310, 234558), (314, 231570), (332, 219015), (372, 195465), (415, 175212), (465, 156372), (471, 154380), (498, 146010), (558, 130310), (620, 117279), (628, 115785), (747, 97340), (785, 92628), (830, 87606), (930, 78186), (942, 77190), (996, 73005), (1116, 65155), (1245, 58404), (1395, 52124), (1413, 51460), (1494, 48670), (1570, 46314), (1660, 43803), (1860, 39093), (1884, 38595), (2355, 30876), (2490, 29202), (2573, 28260), (2790, 26062), (2826, 25730), (2988, 24335), (3140, 23157), (3735, 19468), (4710, 15438), (4867, 14940), (4980, 14601), (5146, 14130), (5580, 13031), (5652, 12865), (7065, 10292), (7470, 9734), (7719, 9420)]