289957100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:288

約数の個数: 144

約数和(自身を含む): 719953920

約数和(自身を除く): 429996820

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 47, 50, 68, 76, 85, 94, 95, 100, 170, 188, 190, 191, 235, 323, 340, 380, 382, 425, 470, 475, 646, 764, 799, 850, 893, 940, 950, 955, 1175, 1292, 1598, 1615, 1700, 1786, 1900, 1910, 2350, 3196, 3230, 3247, 3572, 3629, 3820, 3995, 4465, 4700, 4775, 6460, 6494, 7258, 7990, 8075, 8930, 8977, 9550, 12988, 14516, 15181, 15980, 16150, 16235, 17860, 17954, 18145, 19100, 19975, 22325, 30362, 32300, 32470, 35908, 36290, 39950, 44650, 44885, 60724, 61693, 64940, 72580, 75905, 79900, 81175, 89300, 89770, 90725, 123386, 151810, 152609, 162350, 170563, 179540, 181450, 224425, 246772, 303620, 305218, 308465, 324700, 341126, 362900, 379525, 448850, 610436, 616930, 682252, 759050, 763045, 852815, 897700, 1233860, 1518100, 1526090, 1542325, 1705630, 2899571, 3052180, 3084650, 3411260, 3815225, 4264075, 5799142, 6169300, 7630450, 8528150, 11598284, 14497855, 15260900, 17056300, 28995710, 57991420, 72489275, 144978550, 289957100]

約数ペア:

[(1, 289957100), (2, 144978550), (4, 72489275), (5, 57991420), (10, 28995710), (17, 17056300), (19, 15260900), (20, 14497855), (25, 11598284), (34, 8528150), (38, 7630450), (47, 6169300), (50, 5799142), (68, 4264075), (76, 3815225), (85, 3411260), (94, 3084650), (95, 3052180), (100, 2899571), (170, 1705630), (188, 1542325), (190, 1526090), (191, 1518100), (235, 1233860), (323, 897700), (340, 852815), (380, 763045), (382, 759050), (425, 682252), (470, 616930), (475, 610436), (646, 448850), (764, 379525), (799, 362900), (850, 341126), (893, 324700), (940, 308465), (950, 305218), (955, 303620), (1175, 246772), (1292, 224425), (1598, 181450), (1615, 179540), (1700, 170563), (1786, 162350), (1900, 152609), (1910, 151810), (2350, 123386), (3196, 90725), (3230, 89770), (3247, 89300), (3572, 81175), (3629, 79900), (3820, 75905), (3995, 72580), (4465, 64940), (4700, 61693), (4775, 60724), (6460, 44885), (6494, 44650), (7258, 39950), (7990, 36290), (8075, 35908), (8930, 32470), (8977, 32300), (9550, 30362), (12988, 22325), (14516, 19975), (15181, 19100), (15980, 18145), (16150, 17954), (16235, 17860)]