20120040180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{5471}}^1\times {\mathrm{20431}}^1$

素因数の和:25917

約数の個数: 72

約数和(自身を含む): 61044931584

約数和(自身を除く): 40924891404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 5471, 10942, 16413, 20431, 21884, 27355, 32826, 40862, 49239, 54710, 61293, 65652, 81724, 82065, 98478, 102155, 109420, 122586, 164130, 183879, 196956, 204310, 245172, 246195, 306465, 328260, 367758, 408620, 492390, 612930, 735516, 919395, 984780, 1225860, 1838790, 3677580, 111778001, 223556002, 335334003, 447112004, 558890005, 670668006, 1006002009, 1117780010, 1341336012, 1676670015, 2012004018, 2235560020, 3353340030, 4024008036, 5030010045, 6706680060, 10060020090, 20120040180]

約数ペア:

[(1, 20120040180), (2, 10060020090), (3, 6706680060), (4, 5030010045), (5, 4024008036), (6, 3353340030), (9, 2235560020), (10, 2012004018), (12, 1676670015), (15, 1341336012), (18, 1117780010), (20, 1006002009), (30, 670668006), (36, 558890005), (45, 447112004), (60, 335334003), (90, 223556002), (180, 111778001), (5471, 3677580), (10942, 1838790), (16413, 1225860), (20431, 984780), (21884, 919395), (27355, 735516), (32826, 612930), (40862, 492390), (49239, 408620), (54710, 367758), (61293, 328260), (65652, 306465), (81724, 246195), (82065, 245172), (98478, 204310), (102155, 196956), (109420, 183879), (122586, 164130)]