1640783900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{797}}^1$

素因数の和:1008

約数の個数: 144

約数和(自身を含む): 4338847296

約数和(自身を除く): 2698063396

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 140, 170, 173, 175, 238, 340, 346, 350, 425, 476, 595, 692, 700, 797, 850, 865, 1190, 1211, 1594, 1700, 1730, 2380, 2422, 2941, 2975, 3188, 3460, 3985, 4325, 4844, 5579, 5882, 5950, 6055, 7970, 8650, 11158, 11764, 11900, 12110, 13549, 14705, 15940, 17300, 19925, 20587, 22316, 24220, 27098, 27895, 29410, 30275, 39850, 41174, 54196, 55790, 58820, 60550, 67745, 73525, 79700, 82348, 94843, 102935, 111580, 121100, 135490, 137881, 139475, 147050, 189686, 205870, 270980, 275762, 278950, 294100, 338725, 379372, 411740, 474215, 514675, 551524, 557900, 677450, 689405, 948430, 965167, 1029350, 1354900, 1378810, 1896860, 1930334, 2058700, 2343977, 2371075, 2757620, 3447025, 3860668, 4687954, 4742150, 4825835, 6894050, 9375908, 9484300, 9651670, 11719885, 13788100, 16407839, 19303340, 23439770, 24129175, 32815678, 46879540, 48258350, 58599425, 65631356, 82039195, 96516700, 117198850, 164078390, 234397700, 328156780, 410195975, 820391950, 1640783900]

約数ペア:

[(1, 1640783900), (2, 820391950), (4, 410195975), (5, 328156780), (7, 234397700), (10, 164078390), (14, 117198850), (17, 96516700), (20, 82039195), (25, 65631356), (28, 58599425), (34, 48258350), (35, 46879540), (50, 32815678), (68, 24129175), (70, 23439770), (85, 19303340), (100, 16407839), (119, 13788100), (140, 11719885), (170, 9651670), (173, 9484300), (175, 9375908), (238, 6894050), (340, 4825835), (346, 4742150), (350, 4687954), (425, 3860668), (476, 3447025), (595, 2757620), (692, 2371075), (700, 2343977), (797, 2058700), (850, 1930334), (865, 1896860), (1190, 1378810), (1211, 1354900), (1594, 1029350), (1700, 965167), (1730, 948430), (2380, 689405), (2422, 677450), (2941, 557900), (2975, 551524), (3188, 514675), (3460, 474215), (3985, 411740), (4325, 379372), (4844, 338725), (5579, 294100), (5882, 278950), (5950, 275762), (6055, 270980), (7970, 205870), (8650, 189686), (11158, 147050), (11764, 139475), (11900, 137881), (12110, 135490), (13549, 121100), (14705, 111580), (15940, 102935), (17300, 94843), (19925, 82348), (20587, 79700), (22316, 73525), (24220, 67745), (27098, 60550), (27895, 58820), (29410, 55790), (30275, 54196), (39850, 41174)]