25781860

素因数分解:

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

素因数の和:365

約数の個数: 96

約数和(自身を含む): 65197440

約数和(自身を除く): 39415580

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 130, 170, 190, 221, 247, 260, 307, 323, 340, 380, 442, 494, 614, 646, 884, 988, 1105, 1228, 1235, 1292, 1535, 1615, 2210, 2470, 3070, 3230, 3991, 4199, 4420, 4940, 5219, 5833, 6140, 6460, 7982, 8398, 10438, 11666, 15964, 16796, 19955, 20876, 20995, 23332, 26095, 29165, 39910, 41990, 52190, 58330, 67847, 75829, 79820, 83980, 99161, 104380, 116660, 135694, 151658, 198322, 271388, 303316, 339235, 379145, 396644, 495805, 678470, 758290, 991610, 1289093, 1356940, 1516580, 1983220, 2578186, 5156372, 6445465, 12890930, 25781860]

約数ペア:

[(1, 25781860), (2, 12890930), (4, 6445465), (5, 5156372), (10, 2578186), (13, 1983220), (17, 1516580), (19, 1356940), (20, 1289093), (26, 991610), (34, 758290), (38, 678470), (52, 495805), (65, 396644), (68, 379145), (76, 339235), (85, 303316), (95, 271388), (130, 198322), (170, 151658), (190, 135694), (221, 116660), (247, 104380), (260, 99161), (307, 83980), (323, 79820), (340, 75829), (380, 67847), (442, 58330), (494, 52190), (614, 41990), (646, 39910), (884, 29165), (988, 26095), (1105, 23332), (1228, 20995), (1235, 20876), (1292, 19955), (1535, 16796), (1615, 15964), (2210, 11666), (2470, 10438), (3070, 8398), (3230, 7982), (3991, 6460), (4199, 6140), (4420, 5833), (4940, 5219)]