81449900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5059}}^1$

素因数の和:5103

約数の個数: 72

約数和(自身を含む): 210819840

約数和(自身を除く): 129369940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1610, 2300, 3220, 4025, 5059, 8050, 10118, 16100, 20236, 25295, 35413, 50590, 70826, 101180, 116357, 126475, 141652, 177065, 232714, 252950, 354130, 465428, 505900, 581785, 708260, 814499, 885325, 1163570, 1628998, 1770650, 2327140, 2908925, 3257996, 3541300, 4072495, 5817850, 8144990, 11635700, 16289980, 20362475, 40724950, 81449900]

約数ペア:

[(1, 81449900), (2, 40724950), (4, 20362475), (5, 16289980), (7, 11635700), (10, 8144990), (14, 5817850), (20, 4072495), (23, 3541300), (25, 3257996), (28, 2908925), (35, 2327140), (46, 1770650), (50, 1628998), (70, 1163570), (92, 885325), (100, 814499), (115, 708260), (140, 581785), (161, 505900), (175, 465428), (230, 354130), (322, 252950), (350, 232714), (460, 177065), (575, 141652), (644, 126475), (700, 116357), (805, 101180), (1150, 70826), (1610, 50590), (2300, 35413), (3220, 25295), (4025, 20236), (5059, 16100), (8050, 10118)]