1990389670380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{2851}}^1\times {\mathrm{430949}}^1$

素因数の和:433821

約数の個数: 120

約数和(自身を含む): 6246130690800

約数和(自身を除く): 4255741020420

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, 324, 405, 540, 810, 1620, 2851, 5702, 8553, 11404, 14255, 17106, 25659, 28510, 34212, 42765, 51318, 57020, 76977, 85530, 102636, 128295, 153954, 171060, 230931, 256590, 307908, 384885, 430949, 461862, 513180, 769770, 861898, 923724, 1154655, 1292847, 1539540, 1723796, 2154745, 2309310, 2585694, 3878541, 4309490, 4618620, 5171388, 6464235, 7757082, 8618980, 11635623, 12928470, 15514164, 19392705, 23271246, 25856940, 34906869, 38785410, 46542492, 58178115, 69813738, 77570820, 116356230, 139627476, 174534345, 232712460, 349068690, 698137380, 1228635599, 2457271198, 3685906797, 4914542396, 6143177995, 7371813594, 11057720391, 12286355990, 14743627188, 18429533985, 22115440782, 24572711980, 33173161173, 36859067970, 44230881564, 55288601955, 66346322346, 73718135940, 99519483519, 110577203910, 132692644692, 165865805865, 199038967038, 221154407820, 331731611730, 398077934076, 497597417595, 663463223460, 995194835190, 1990389670380]

約数ペア:

[(1, 1990389670380), (2, 995194835190), (3, 663463223460), (4, 497597417595), (5, 398077934076), (6, 331731611730), (9, 221154407820), (10, 199038967038), (12, 165865805865), (15, 132692644692), (18, 110577203910), (20, 99519483519), (27, 73718135940), (30, 66346322346), (36, 55288601955), (45, 44230881564), (54, 36859067970), (60, 33173161173), (81, 24572711980), (90, 22115440782), (108, 18429533985), (135, 14743627188), (162, 12286355990), (180, 11057720391), (270, 7371813594), (324, 6143177995), (405, 4914542396), (540, 3685906797), (810, 2457271198), (1620, 1228635599), (2851, 698137380), (5702, 349068690), (8553, 232712460), (11404, 174534345), (14255, 139627476), (17106, 116356230), (25659, 77570820), (28510, 69813738), (34212, 58178115), (42765, 46542492), (51318, 38785410), (57020, 34906869), (76977, 25856940), (85530, 23271246), (102636, 19392705), (128295, 15514164), (153954, 12928470), (171060, 11635623), (230931, 8618980), (256590, 7757082), (307908, 6464235), (384885, 5171388), (430949, 4618620), (461862, 4309490), (513180, 3878541), (769770, 2585694), (861898, 2309310), (923724, 2154745), (1154655, 1723796), (1292847, 1539540)]