20199654540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{54983}}^1$

素因数の和:55168

約数の個数: 144

約数和(自身を含む): 66407035968

約数和(自身を除く): 46207381428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 157, 180, 195, 234, 260, 314, 390, 468, 471, 585, 628, 780, 785, 942, 1170, 1413, 1570, 1884, 2041, 2340, 2355, 2826, 3140, 4082, 4710, 5652, 6123, 7065, 8164, 9420, 10205, 12246, 14130, 18369, 20410, 24492, 28260, 30615, 36738, 40820, 54983, 61230, 73476, 91845, 109966, 122460, 164949, 183690, 219932, 274915, 329898, 367380, 494847, 549830, 659796, 714779, 824745, 989694, 1099660, 1429558, 1649490, 1979388, 2144337, 2474235, 2859116, 3298980, 3573895, 4288674, 4948470, 6433011, 7147790, 8577348, 8632331, 9896940, 10721685, 12866022, 14295580, 17264662, 21443370, 25732044, 25896993, 32165055, 34529324, 42886740, 43161655, 51793986, 64330110, 77690979, 86323310, 103587972, 112220303, 128660220, 129484965, 155381958, 172646620, 224440606, 258969930, 310763916, 336660909, 388454895, 448881212, 517939860, 561101515, 673321818, 776909790, 1009982727, 1122203030, 1346643636, 1553819580, 1683304545, 2019965454, 2244406060, 3366609090, 4039930908, 5049913635, 6733218180, 10099827270, 20199654540]

約数ペア:

[(1, 20199654540), (2, 10099827270), (3, 6733218180), (4, 5049913635), (5, 4039930908), (6, 3366609090), (9, 2244406060), (10, 2019965454), (12, 1683304545), (13, 1553819580), (15, 1346643636), (18, 1122203030), (20, 1009982727), (26, 776909790), (30, 673321818), (36, 561101515), (39, 517939860), (45, 448881212), (52, 388454895), (60, 336660909), (65, 310763916), (78, 258969930), (90, 224440606), (117, 172646620), (130, 155381958), (156, 129484965), (157, 128660220), (180, 112220303), (195, 103587972), (234, 86323310), (260, 77690979), (314, 64330110), (390, 51793986), (468, 43161655), (471, 42886740), (585, 34529324), (628, 32165055), (780, 25896993), (785, 25732044), (942, 21443370), (1170, 17264662), (1413, 14295580), (1570, 12866022), (1884, 10721685), (2041, 9896940), (2340, 8632331), (2355, 8577348), (2826, 7147790), (3140, 6433011), (4082, 4948470), (4710, 4288674), (5652, 3573895), (6123, 3298980), (7065, 2859116), (8164, 2474235), (9420, 2144337), (10205, 1979388), (12246, 1649490), (14130, 1429558), (18369, 1099660), (20410, 989694), (24492, 824745), (28260, 714779), (30615, 659796), (36738, 549830), (40820, 494847), (54983, 367380), (61230, 329898), (73476, 274915), (91845, 219932), (109966, 183690), (122460, 164949)]