20408049376240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{517445471}}^1$

素因数の和:517445530

約数の個数: 80

約数和(自身を含む): 51972223207680

約数和(自身を除く): 31564173831440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 986, 1160, 1360, 1972, 2320, 2465, 3944, 4930, 7888, 9860, 19720, 39440, 517445471, 1034890942, 2069781884, 2587227355, 4139563768, 5174454710, 8279127536, 8796573007, 10348909420, 15005918659, 17593146014, 20697818840, 30011837318, 35186292028, 41395637680, 43982865035, 60023674636, 70372584056, 75029593295, 87965730070, 120047349272, 140745168112, 150059186590, 175931460140, 240094698544, 255100617203, 300118373180, 351862920280, 510201234406, 600236746360, 703725840560, 1020402468812, 1200473492720, 1275503086015, 2040804937624, 2551006172030, 4081609875248, 5102012344060, 10204024688120, 20408049376240]

約数ペア:

[(1, 20408049376240), (2, 10204024688120), (4, 5102012344060), (5, 4081609875248), (8, 2551006172030), (10, 2040804937624), (16, 1275503086015), (17, 1200473492720), (20, 1020402468812), (29, 703725840560), (34, 600236746360), (40, 510201234406), (58, 351862920280), (68, 300118373180), (80, 255100617203), (85, 240094698544), (116, 175931460140), (136, 150059186590), (145, 140745168112), (170, 120047349272), (232, 87965730070), (272, 75029593295), (290, 70372584056), (340, 60023674636), (464, 43982865035), (493, 41395637680), (580, 35186292028), (680, 30011837318), (986, 20697818840), (1160, 17593146014), (1360, 15005918659), (1972, 10348909420), (2320, 8796573007), (2465, 8279127536), (3944, 5174454710), (4930, 4139563768), (7888, 2587227355), (9860, 2069781884), (19720, 1034890942), (39440, 517445471)]