20864938440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{25763}}^1$

素因数の和:26191

約数の個数: 128

約数和(自身を含む): 66446386560

約数和(自身を除く): 45581448120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 397, 408, 510, 680, 794, 1020, 1191, 1588, 1985, 2040, 2382, 3176, 3970, 4764, 5955, 6749, 7940, 9528, 11910, 13498, 15880, 20247, 23820, 25763, 26996, 33745, 40494, 47640, 51526, 53992, 67490, 77289, 80988, 101235, 103052, 128815, 134980, 154578, 161976, 202470, 206104, 257630, 269960, 309156, 386445, 404940, 437971, 515260, 618312, 772890, 809880, 875942, 1030520, 1313913, 1545780, 1751884, 2189855, 2627826, 3091560, 3503768, 4379710, 5255652, 6569565, 8759420, 10227911, 10511304, 13139130, 17518840, 20455822, 26278260, 30683733, 40911644, 51139555, 52556520, 61367466, 81823288, 102279110, 122734932, 153418665, 173874487, 204558220, 245469864, 306837330, 347748974, 409116440, 521623461, 613674660, 695497948, 869372435, 1043246922, 1227349320, 1390995896, 1738744870, 2086493844, 2608117305, 3477489740, 4172987688, 5216234610, 6954979480, 10432469220, 20864938440]

約数ペア:

[(1, 20864938440), (2, 10432469220), (3, 6954979480), (4, 5216234610), (5, 4172987688), (6, 3477489740), (8, 2608117305), (10, 2086493844), (12, 1738744870), (15, 1390995896), (17, 1227349320), (20, 1043246922), (24, 869372435), (30, 695497948), (34, 613674660), (40, 521623461), (51, 409116440), (60, 347748974), (68, 306837330), (85, 245469864), (102, 204558220), (120, 173874487), (136, 153418665), (170, 122734932), (204, 102279110), (255, 81823288), (340, 61367466), (397, 52556520), (408, 51139555), (510, 40911644), (680, 30683733), (794, 26278260), (1020, 20455822), (1191, 17518840), (1588, 13139130), (1985, 10511304), (2040, 10227911), (2382, 8759420), (3176, 6569565), (3970, 5255652), (4764, 4379710), (5955, 3503768), (6749, 3091560), (7940, 2627826), (9528, 2189855), (11910, 1751884), (13498, 1545780), (15880, 1313913), (20247, 1030520), (23820, 875942), (25763, 809880), (26996, 772890), (33745, 618312), (40494, 515260), (47640, 437971), (51526, 404940), (53992, 386445), (67490, 309156), (77289, 269960), (80988, 257630), (101235, 206104), (103052, 202470), (128815, 161976), (134980, 154578)]