20818442820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{233}}^1\times {\mathrm{30391}}^1$

素因数の和:30650

約数の個数: 144

約数和(自身を含む): 68101907328

約数和(自身を除く): 47283464508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 233, 245, 294, 420, 466, 490, 588, 699, 735, 932, 980, 1165, 1398, 1470, 1631, 2330, 2796, 2940, 3262, 3495, 4660, 4893, 6524, 6990, 8155, 9786, 11417, 13980, 16310, 19572, 22834, 24465, 30391, 32620, 34251, 45668, 48930, 57085, 60782, 68502, 91173, 97860, 114170, 121564, 137004, 151955, 171255, 182346, 212737, 228340, 303910, 342510, 364692, 425474, 455865, 607820, 638211, 685020, 850948, 911730, 1063685, 1276422, 1489159, 1823460, 2127370, 2552844, 2978318, 3191055, 4254740, 4467477, 5956636, 6382110, 7081103, 7445795, 8934954, 12764220, 14162206, 14891590, 17869908, 21243309, 22337385, 28324412, 29783180, 35405515, 42486618, 44674770, 49567721, 70811030, 84973236, 89349540, 99135442, 106216545, 141622060, 148703163, 198270884, 212433090, 247838605, 297406326, 346974047, 424866180, 495677210, 594812652, 693948094, 743515815, 991354420, 1040922141, 1387896188, 1487031630, 1734870235, 2081844282, 2974063260, 3469740470, 4163688564, 5204610705, 6939480940, 10409221410, 20818442820]

約数ペア:

[(1, 20818442820), (2, 10409221410), (3, 6939480940), (4, 5204610705), (5, 4163688564), (6, 3469740470), (7, 2974063260), (10, 2081844282), (12, 1734870235), (14, 1487031630), (15, 1387896188), (20, 1040922141), (21, 991354420), (28, 743515815), (30, 693948094), (35, 594812652), (42, 495677210), (49, 424866180), (60, 346974047), (70, 297406326), (84, 247838605), (98, 212433090), (105, 198270884), (140, 148703163), (147, 141622060), (196, 106216545), (210, 99135442), (233, 89349540), (245, 84973236), (294, 70811030), (420, 49567721), (466, 44674770), (490, 42486618), (588, 35405515), (699, 29783180), (735, 28324412), (932, 22337385), (980, 21243309), (1165, 17869908), (1398, 14891590), (1470, 14162206), (1631, 12764220), (2330, 8934954), (2796, 7445795), (2940, 7081103), (3262, 6382110), (3495, 5956636), (4660, 4467477), (4893, 4254740), (6524, 3191055), (6990, 2978318), (8155, 2552844), (9786, 2127370), (11417, 1823460), (13980, 1489159), (16310, 1276422), (19572, 1063685), (22834, 911730), (24465, 850948), (30391, 685020), (32620, 638211), (34251, 607820), (45668, 455865), (48930, 425474), (57085, 364692), (60782, 342510), (68502, 303910), (91173, 228340), (97860, 212737), (114170, 182346), (121564, 171255), (137004, 151955)]