51563720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:367

約数の個数: 128

約数和(自身を含む): 139708800

約数和(自身を除く): 88145080

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 307, 323, 340, 380, 442, 494, 520, 614, 646, 680, 760, 884, 988, 1105, 1228, 1235, 1292, 1535, 1615, 1768, 1976, 2210, 2456, 2470, 2584, 3070, 3230, 3991, 4199, 4420, 4940, 5219, 5833, 6140, 6460, 7982, 8398, 8840, 9880, 10438, 11666, 12280, 12920, 15964, 16796, 19955, 20876, 20995, 23332, 26095, 29165, 31928, 33592, 39910, 41752, 41990, 46664, 52190, 58330, 67847, 75829, 79820, 83980, 99161, 104380, 116660, 135694, 151658, 159640, 167960, 198322, 208760, 233320, 271388, 303316, 339235, 379145, 396644, 495805, 542776, 606632, 678470, 758290, 793288, 991610, 1289093, 1356940, 1516580, 1983220, 2578186, 2713880, 3033160, 3966440, 5156372, 6445465, 10312744, 12890930, 25781860, 51563720]

約数ペア:

[(1, 51563720), (2, 25781860), (4, 12890930), (5, 10312744), (8, 6445465), (10, 5156372), (13, 3966440), (17, 3033160), (19, 2713880), (20, 2578186), (26, 1983220), (34, 1516580), (38, 1356940), (40, 1289093), (52, 991610), (65, 793288), (68, 758290), (76, 678470), (85, 606632), (95, 542776), (104, 495805), (130, 396644), (136, 379145), (152, 339235), (170, 303316), (190, 271388), (221, 233320), (247, 208760), (260, 198322), (307, 167960), (323, 159640), (340, 151658), (380, 135694), (442, 116660), (494, 104380), (520, 99161), (614, 83980), (646, 79820), (680, 75829), (760, 67847), (884, 58330), (988, 52190), (1105, 46664), (1228, 41990), (1235, 41752), (1292, 39910), (1535, 33592), (1615, 31928), (1768, 29165), (1976, 26095), (2210, 23332), (2456, 20995), (2470, 20876), (2584, 19955), (3070, 16796), (3230, 15964), (3991, 12920), (4199, 12280), (4420, 11666), (4940, 10438), (5219, 9880), (5833, 8840), (6140, 8398), (6460, 7982)]