199820380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 450567936

約数和(自身を除く): 250747556

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 191, 289, 340, 362, 382, 578, 724, 764, 905, 955, 1156, 1445, 1810, 1910, 2890, 3077, 3247, 3620, 3820, 5780, 6154, 6494, 12308, 12988, 15385, 16235, 30770, 32470, 34571, 52309, 55199, 61540, 64940, 69142, 104618, 110398, 138284, 172855, 209236, 220796, 261545, 275995, 345710, 523090, 551990, 587707, 691420, 1046180, 1103980, 1175414, 2350828, 2938535, 5877070, 9991019, 11754140, 19982038, 39964076, 49955095, 99910190, 199820380]

約数ペア:

[(1, 199820380), (2, 99910190), (4, 49955095), (5, 39964076), (10, 19982038), (17, 11754140), (20, 9991019), (34, 5877070), (68, 2938535), (85, 2350828), (170, 1175414), (181, 1103980), (191, 1046180), (289, 691420), (340, 587707), (362, 551990), (382, 523090), (578, 345710), (724, 275995), (764, 261545), (905, 220796), (955, 209236), (1156, 172855), (1445, 138284), (1810, 110398), (1910, 104618), (2890, 69142), (3077, 64940), (3247, 61540), (3620, 55199), (3820, 52309), (5780, 34571), (6154, 32470), (6494, 30770), (12308, 16235), (12988, 15385)]