638756820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4789}}^1$

素因数の和:4839

約数の個数: 192

約数和(自身を含む): 2253216000

約数和(自身を除く): 1614459180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 27, 30, 36, 38, 39, 45, 52, 54, 57, 60, 65, 76, 78, 90, 95, 108, 114, 117, 130, 135, 156, 171, 180, 190, 195, 228, 234, 247, 260, 270, 285, 342, 351, 380, 390, 468, 494, 513, 540, 570, 585, 684, 702, 741, 780, 855, 988, 1026, 1140, 1170, 1235, 1404, 1482, 1710, 1755, 2052, 2223, 2340, 2470, 2565, 2964, 3420, 3510, 3705, 4446, 4789, 4940, 5130, 6669, 7020, 7410, 8892, 9578, 10260, 11115, 13338, 14367, 14820, 19156, 22230, 23945, 26676, 28734, 33345, 43101, 44460, 47890, 57468, 62257, 66690, 71835, 86202, 90991, 95780, 124514, 129303, 133380, 143670, 172404, 181982, 186771, 215505, 249028, 258606, 272973, 287340, 311285, 363964, 373542, 431010, 454955, 517212, 545946, 560313, 622570, 646515, 747084, 818919, 862020, 909910, 933855, 1091892, 1120626, 1182883, 1245140, 1293030, 1364865, 1637838, 1680939, 1819820, 1867710, 2241252, 2365766, 2456757, 2586060, 2729730, 2801565, 3275676, 3361878, 3548649, 3735420, 4094595, 4731532, 4913514, 5459460, 5603130, 5914415, 6723756, 7097298, 8189190, 8404695, 9827028, 10645947, 11206260, 11828830, 12283785, 14194596, 16378380, 16809390, 17743245, 21291894, 23657660, 24567570, 31937841, 33618780, 35486490, 42583788, 49135140, 53229735, 63875682, 70972980, 106459470, 127751364, 159689205, 212918940, 319378410, 638756820]

約数ペア:

[(1, 638756820), (2, 319378410), (3, 212918940), (4, 159689205), (5, 127751364), (6, 106459470), (9, 70972980), (10, 63875682), (12, 53229735), (13, 49135140), (15, 42583788), (18, 35486490), (19, 33618780), (20, 31937841), (26, 24567570), (27, 23657660), (30, 21291894), (36, 17743245), (38, 16809390), (39, 16378380), (45, 14194596), (52, 12283785), (54, 11828830), (57, 11206260), (60, 10645947), (65, 9827028), (76, 8404695), (78, 8189190), (90, 7097298), (95, 6723756), (108, 5914415), (114, 5603130), (117, 5459460), (130, 4913514), (135, 4731532), (156, 4094595), (171, 3735420), (180, 3548649), (190, 3361878), (195, 3275676), (228, 2801565), (234, 2729730), (247, 2586060), (260, 2456757), (270, 2365766), (285, 2241252), (342, 1867710), (351, 1819820), (380, 1680939), (390, 1637838), (468, 1364865), (494, 1293030), (513, 1245140), (540, 1182883), (570, 1120626), (585, 1091892), (684, 933855), (702, 909910), (741, 862020), (780, 818919), (855, 747084), (988, 646515), (1026, 622570), (1140, 560313), (1170, 545946), (1235, 517212), (1404, 454955), (1482, 431010), (1710, 373542), (1755, 363964), (2052, 311285), (2223, 287340), (2340, 272973), (2470, 258606), (2565, 249028), (2964, 215505), (3420, 186771), (3510, 181982), (3705, 172404), (4446, 143670), (4789, 133380), (4940, 129303), (5130, 124514), (6669, 95780), (7020, 90991), (7410, 86202), (8892, 71835), (9578, 66690), (10260, 62257), (11115, 57468), (13338, 47890), (14367, 44460), (14820, 43101), (19156, 33345), (22230, 28734), (23945, 26676)]