20187845355

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1\times {\mathrm{2753}}^1$

素因数の和:3120

約数の個数: 64

約数和(自身を含む): 34621084800

約数和(自身を除く): 14433239445

約数列:

[1, 3, 5, 15, 17, 51, 85, 149, 193, 255, 447, 579, 745, 965, 2235, 2533, 2753, 2895, 3281, 7599, 8259, 9843, 12665, 13765, 16405, 28757, 37995, 41295, 46801, 49215, 86271, 140403, 143785, 234005, 410197, 431355, 488869, 531329, 702015, 1230591, 1466607, 1593987, 2050985, 2444345, 2656645, 6152955, 6973349, 7333035, 7969935, 9032593, 20920047, 27097779, 34866745, 45162965, 79168021, 104600235, 135488895, 237504063, 395840105, 1187520315, 1345856357, 4037569071, 6729281785, 20187845355]

約数ペア:

[(1, 20187845355), (3, 6729281785), (5, 4037569071), (15, 1345856357), (17, 1187520315), (51, 395840105), (85, 237504063), (149, 135488895), (193, 104600235), (255, 79168021), (447, 45162965), (579, 34866745), (745, 27097779), (965, 20920047), (2235, 9032593), (2533, 7969935), (2753, 7333035), (2895, 6973349), (3281, 6152955), (7599, 2656645), (8259, 2444345), (9843, 2050985), (12665, 1593987), (13765, 1466607), (16405, 1230591), (28757, 702015), (37995, 531329), (41295, 488869), (46801, 431355), (49215, 410197), (86271, 234005), (140403, 143785)]