81938300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 190081584

約数和(自身を除く): 108143284

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 157, 170, 307, 314, 340, 425, 614, 628, 785, 850, 1228, 1535, 1570, 1700, 2669, 3070, 3140, 3925, 5219, 5338, 6140, 7675, 7850, 10438, 10676, 13345, 15350, 15700, 20876, 26095, 26690, 30700, 48199, 52190, 53380, 66725, 96398, 104380, 130475, 133450, 192796, 240995, 260950, 266900, 481990, 521900, 819383, 963980, 1204975, 1638766, 2409950, 3277532, 4096915, 4819900, 8193830, 16387660, 20484575, 40969150, 81938300]

約数ペア:

[(1, 81938300), (2, 40969150), (4, 20484575), (5, 16387660), (10, 8193830), (17, 4819900), (20, 4096915), (25, 3277532), (34, 2409950), (50, 1638766), (68, 1204975), (85, 963980), (100, 819383), (157, 521900), (170, 481990), (307, 266900), (314, 260950), (340, 240995), (425, 192796), (614, 133450), (628, 130475), (785, 104380), (850, 96398), (1228, 66725), (1535, 53380), (1570, 52190), (1700, 48199), (2669, 30700), (3070, 26690), (3140, 26095), (3925, 20876), (5219, 15700), (5338, 15350), (6140, 13345), (7675, 10676), (7850, 10438)]