31712480

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 80831520

約数和(自身を除く): 49119040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 89, 131, 136, 160, 170, 178, 262, 272, 340, 356, 445, 524, 544, 655, 680, 712, 890, 1048, 1310, 1360, 1424, 1513, 1780, 2096, 2227, 2620, 2720, 2848, 3026, 3560, 4192, 4454, 5240, 6052, 7120, 7565, 8908, 10480, 11135, 11659, 12104, 14240, 15130, 17816, 20960, 22270, 23318, 24208, 30260, 35632, 44540, 46636, 48416, 58295, 60520, 71264, 89080, 93272, 116590, 121040, 178160, 186544, 198203, 233180, 242080, 356320, 373088, 396406, 466360, 792812, 932720, 991015, 1585624, 1865440, 1982030, 3171248, 3964060, 6342496, 7928120, 15856240, 31712480]

約数ペア:

[(1, 31712480), (2, 15856240), (4, 7928120), (5, 6342496), (8, 3964060), (10, 3171248), (16, 1982030), (17, 1865440), (20, 1585624), (32, 991015), (34, 932720), (40, 792812), (68, 466360), (80, 396406), (85, 373088), (89, 356320), (131, 242080), (136, 233180), (160, 198203), (170, 186544), (178, 178160), (262, 121040), (272, 116590), (340, 93272), (356, 89080), (445, 71264), (524, 60520), (544, 58295), (655, 48416), (680, 46636), (712, 44540), (890, 35632), (1048, 30260), (1310, 24208), (1360, 23318), (1424, 22270), (1513, 20960), (1780, 17816), (2096, 15130), (2227, 14240), (2620, 12104), (2720, 11659), (2848, 11135), (3026, 10480), (3560, 8908), (4192, 7565), (4454, 7120), (5240, 6052)]