101210720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:257

約数の個数: 144

約数和(自身を含む): 273929040

約数和(自身を除く): 172718320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 169, 190, 197, 208, 247, 260, 304, 338, 380, 394, 416, 494, 520, 608, 676, 760, 788, 845, 985, 988, 1040, 1235, 1352, 1520, 1576, 1690, 1970, 1976, 2080, 2470, 2561, 2704, 3040, 3152, 3211, 3380, 3743, 3940, 3952, 4940, 5122, 5408, 6304, 6422, 6760, 7486, 7880, 7904, 9880, 10244, 12805, 12844, 13520, 14972, 15760, 16055, 18715, 19760, 20488, 25610, 25688, 27040, 29944, 31520, 32110, 33293, 37430, 39520, 40976, 48659, 51220, 51376, 59888, 64220, 66586, 74860, 81952, 97318, 102440, 102752, 119776, 128440, 133172, 149720, 166465, 194636, 204880, 243295, 256880, 266344, 299440, 332930, 389272, 409760, 486590, 513760, 532688, 598880, 632567, 665860, 778544, 973180, 1065376, 1265134, 1331720, 1557088, 1946360, 2530268, 2663440, 3162835, 3892720, 5060536, 5326880, 6325670, 7785440, 10121072, 12651340, 20242144, 25302680, 50605360, 101210720]

約数ペア:

[(1, 101210720), (2, 50605360), (4, 25302680), (5, 20242144), (8, 12651340), (10, 10121072), (13, 7785440), (16, 6325670), (19, 5326880), (20, 5060536), (26, 3892720), (32, 3162835), (38, 2663440), (40, 2530268), (52, 1946360), (65, 1557088), (76, 1331720), (80, 1265134), (95, 1065376), (104, 973180), (130, 778544), (152, 665860), (160, 632567), (169, 598880), (190, 532688), (197, 513760), (208, 486590), (247, 409760), (260, 389272), (304, 332930), (338, 299440), (380, 266344), (394, 256880), (416, 243295), (494, 204880), (520, 194636), (608, 166465), (676, 149720), (760, 133172), (788, 128440), (845, 119776), (985, 102752), (988, 102440), (1040, 97318), (1235, 81952), (1352, 74860), (1520, 66586), (1576, 64220), (1690, 59888), (1970, 51376), (1976, 51220), (2080, 48659), (2470, 40976), (2561, 39520), (2704, 37430), (3040, 33293), (3152, 32110), (3211, 31520), (3380, 29944), (3743, 27040), (3940, 25688), (3952, 25610), (4940, 20488), (5122, 19760), (5408, 18715), (6304, 16055), (6422, 15760), (6760, 14972), (7486, 13520), (7880, 12844), (7904, 12805), (9880, 10244)]