20174994580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{20731}}^1$

素因数の和:20969

約数の個数: 96

約数和(自身を含む): 48274047360

約数和(自身を除く): 28099052780

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 197, 247, 260, 380, 394, 494, 788, 985, 988, 1235, 1970, 2470, 2561, 3743, 3940, 4940, 5122, 7486, 10244, 12805, 14972, 18715, 20731, 25610, 37430, 41462, 48659, 51220, 74860, 82924, 97318, 103655, 194636, 207310, 243295, 269503, 393889, 414620, 486590, 539006, 787778, 973180, 1078012, 1347515, 1575556, 1969445, 2695030, 3938890, 4084007, 5120557, 5390060, 7877780, 8168014, 10241114, 16336028, 20420035, 20482228, 25602785, 40840070, 51205570, 53092091, 77596133, 81680140, 102411140, 106184182, 155192266, 212368364, 265460455, 310384532, 387980665, 530920910, 775961330, 1008749729, 1061841820, 1551922660, 2017499458, 4034998916, 5043748645, 10087497290, 20174994580]

約数ペア:

[(1, 20174994580), (2, 10087497290), (4, 5043748645), (5, 4034998916), (10, 2017499458), (13, 1551922660), (19, 1061841820), (20, 1008749729), (26, 775961330), (38, 530920910), (52, 387980665), (65, 310384532), (76, 265460455), (95, 212368364), (130, 155192266), (190, 106184182), (197, 102411140), (247, 81680140), (260, 77596133), (380, 53092091), (394, 51205570), (494, 40840070), (788, 25602785), (985, 20482228), (988, 20420035), (1235, 16336028), (1970, 10241114), (2470, 8168014), (2561, 7877780), (3743, 5390060), (3940, 5120557), (4940, 4084007), (5122, 3938890), (7486, 2695030), (10244, 1969445), (12805, 1575556), (14972, 1347515), (18715, 1078012), (20731, 973180), (25610, 787778), (37430, 539006), (41462, 486590), (48659, 414620), (51220, 393889), (74860, 269503), (82924, 243295), (97318, 207310), (103655, 194636)]