221176980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{439}}^1$

素因数の和:771

約数の個数: 120

約数和(自身を含む): 697656960

約数和(自身を除く): 476479980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 311, 324, 405, 439, 540, 622, 810, 878, 933, 1244, 1317, 1555, 1620, 1756, 1866, 2195, 2634, 2799, 3110, 3732, 3951, 4390, 4665, 5268, 5598, 6220, 6585, 7902, 8397, 8780, 9330, 11196, 11853, 13170, 13995, 15804, 16794, 18660, 19755, 23706, 25191, 26340, 27990, 33588, 35559, 39510, 41985, 47412, 50382, 55980, 59265, 71118, 79020, 83970, 100764, 118530, 125955, 136529, 142236, 167940, 177795, 237060, 251910, 273058, 355590, 409587, 503820, 546116, 682645, 711180, 819174, 1228761, 1365290, 1638348, 2047935, 2457522, 2730580, 3686283, 4095870, 4915044, 6143805, 7372566, 8191740, 11058849, 12287610, 14745132, 18431415, 22117698, 24575220, 36862830, 44235396, 55294245, 73725660, 110588490, 221176980]

約数ペア:

[(1, 221176980), (2, 110588490), (3, 73725660), (4, 55294245), (5, 44235396), (6, 36862830), (9, 24575220), (10, 22117698), (12, 18431415), (15, 14745132), (18, 12287610), (20, 11058849), (27, 8191740), (30, 7372566), (36, 6143805), (45, 4915044), (54, 4095870), (60, 3686283), (81, 2730580), (90, 2457522), (108, 2047935), (135, 1638348), (162, 1365290), (180, 1228761), (270, 819174), (311, 711180), (324, 682645), (405, 546116), (439, 503820), (540, 409587), (622, 355590), (810, 273058), (878, 251910), (933, 237060), (1244, 177795), (1317, 167940), (1555, 142236), (1620, 136529), (1756, 125955), (1866, 118530), (2195, 100764), (2634, 83970), (2799, 79020), (3110, 71118), (3732, 59265), (3951, 55980), (4390, 50382), (4665, 47412), (5268, 41985), (5598, 39510), (6220, 35559), (6585, 33588), (7902, 27990), (8397, 26340), (8780, 25191), (9330, 23706), (11196, 19755), (11853, 18660), (13170, 16794), (13995, 15804)]