1991898090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2273}}^1$

素因数の和:2413

約数の個数: 192

約数和(自身を含む): 6436475136

約数和(自身を除く): 4444577046

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 107, 117, 126, 130, 182, 195, 210, 214, 234, 273, 315, 321, 390, 455, 535, 546, 585, 630, 642, 749, 819, 910, 963, 1070, 1170, 1365, 1391, 1498, 1605, 1638, 1926, 2247, 2273, 2730, 2782, 3210, 3745, 4095, 4173, 4494, 4546, 4815, 6741, 6819, 6955, 7490, 8190, 8346, 9630, 9737, 11235, 11365, 12519, 13482, 13638, 13910, 15911, 19474, 20457, 20865, 22470, 22730, 25038, 29211, 29549, 31822, 33705, 34095, 40914, 41730, 47733, 48685, 58422, 59098, 62595, 67410, 68190, 79555, 87633, 88647, 95466, 97370, 102285, 125190, 143199, 146055, 147745, 159110, 175266, 177294, 204570, 206843, 238665, 243211, 265941, 286398, 292110, 295490, 413686, 438165, 443235, 477330, 486422, 531882, 620529, 715995, 729633, 876330, 886470, 1034215, 1216055, 1241058, 1329705, 1431990, 1459266, 1702477, 1861587, 2068430, 2188899, 2432110, 2659410, 3102645, 3161743, 3404954, 3648165, 3723174, 4377798, 5107431, 6205290, 6323486, 7296330, 8512385, 9307935, 9485229, 10214862, 10944495, 15322293, 15808715, 17024770, 18615870, 18970458, 21888990, 22132201, 25537155, 28455687, 30644586, 31617430, 44264402, 47426145, 51074310, 56911374, 66396603, 76611465, 94852290, 110661005, 132793206, 142278435, 153222930, 199189809, 221322010, 284556870, 331983015, 398379618, 663966030, 995949045, 1991898090]

約数ペア:

[(1, 1991898090), (2, 995949045), (3, 663966030), (5, 398379618), (6, 331983015), (7, 284556870), (9, 221322010), (10, 199189809), (13, 153222930), (14, 142278435), (15, 132793206), (18, 110661005), (21, 94852290), (26, 76611465), (30, 66396603), (35, 56911374), (39, 51074310), (42, 47426145), (45, 44264402), (63, 31617430), (65, 30644586), (70, 28455687), (78, 25537155), (90, 22132201), (91, 21888990), (105, 18970458), (107, 18615870), (117, 17024770), (126, 15808715), (130, 15322293), (182, 10944495), (195, 10214862), (210, 9485229), (214, 9307935), (234, 8512385), (273, 7296330), (315, 6323486), (321, 6205290), (390, 5107431), (455, 4377798), (535, 3723174), (546, 3648165), (585, 3404954), (630, 3161743), (642, 3102645), (749, 2659410), (819, 2432110), (910, 2188899), (963, 2068430), (1070, 1861587), (1170, 1702477), (1365, 1459266), (1391, 1431990), (1498, 1329705), (1605, 1241058), (1638, 1216055), (1926, 1034215), (2247, 886470), (2273, 876330), (2730, 729633), (2782, 715995), (3210, 620529), (3745, 531882), (4095, 486422), (4173, 477330), (4494, 443235), (4546, 438165), (4815, 413686), (6741, 295490), (6819, 292110), (6955, 286398), (7490, 265941), (8190, 243211), (8346, 238665), (9630, 206843), (9737, 204570), (11235, 177294), (11365, 175266), (12519, 159110), (13482, 147745), (13638, 146055), (13910, 143199), (15911, 125190), (19474, 102285), (20457, 97370), (20865, 95466), (22470, 88647), (22730, 87633), (25038, 79555), (29211, 68190), (29549, 67410), (31822, 62595), (33705, 59098), (34095, 58422), (40914, 48685), (41730, 47733)]