205540740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1787}}^1$

素因数の和:1879

約数の個数: 120

約数和(自身を含む): 654236352

約数和(自身を除く): 448695612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 81, 90, 108, 135, 142, 162, 180, 213, 270, 284, 324, 355, 405, 426, 540, 639, 710, 810, 852, 1065, 1278, 1420, 1620, 1787, 1917, 2130, 2556, 3195, 3574, 3834, 4260, 5361, 5751, 6390, 7148, 7668, 8935, 9585, 10722, 11502, 12780, 16083, 17870, 19170, 21444, 23004, 26805, 28755, 32166, 35740, 38340, 48249, 53610, 57510, 64332, 80415, 96498, 107220, 115020, 126877, 144747, 160830, 192996, 241245, 253754, 289494, 321660, 380631, 482490, 507508, 578988, 634385, 723735, 761262, 964980, 1141893, 1268770, 1447470, 1522524, 1903155, 2283786, 2537540, 2894940, 3425679, 3806310, 4567572, 5709465, 6851358, 7612620, 10277037, 11418930, 13702716, 17128395, 20554074, 22837860, 34256790, 41108148, 51385185, 68513580, 102770370, 205540740]

約数ペア:

[(1, 205540740), (2, 102770370), (3, 68513580), (4, 51385185), (5, 41108148), (6, 34256790), (9, 22837860), (10, 20554074), (12, 17128395), (15, 13702716), (18, 11418930), (20, 10277037), (27, 7612620), (30, 6851358), (36, 5709465), (45, 4567572), (54, 3806310), (60, 3425679), (71, 2894940), (81, 2537540), (90, 2283786), (108, 1903155), (135, 1522524), (142, 1447470), (162, 1268770), (180, 1141893), (213, 964980), (270, 761262), (284, 723735), (324, 634385), (355, 578988), (405, 507508), (426, 482490), (540, 380631), (639, 321660), (710, 289494), (810, 253754), (852, 241245), (1065, 192996), (1278, 160830), (1420, 144747), (1620, 126877), (1787, 115020), (1917, 107220), (2130, 96498), (2556, 80415), (3195, 64332), (3574, 57510), (3834, 53610), (4260, 48249), (5361, 38340), (5751, 35740), (6390, 32166), (7148, 28755), (7668, 26805), (8935, 23004), (9585, 21444), (10722, 19170), (11502, 17870), (12780, 16083)]