721124480

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1982

約数の個数: 128

約数和(自身を含む): 1874188800

約数和(自身を除く): 1153064320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 248, 304, 310, 320, 380, 496, 589, 608, 620, 640, 760, 992, 1178, 1216, 1240, 1520, 1913, 1984, 2356, 2432, 2480, 2945, 3040, 3826, 3968, 4712, 4960, 5890, 6080, 7652, 9424, 9565, 9920, 11780, 12160, 15304, 18848, 19130, 19840, 23560, 30608, 36347, 37696, 38260, 47120, 59303, 61216, 72694, 75392, 76520, 94240, 118606, 122432, 145388, 153040, 181735, 188480, 237212, 244864, 290776, 296515, 306080, 363470, 376960, 474424, 581552, 593030, 612160, 726940, 948848, 1126757, 1163104, 1186060, 1224320, 1453880, 1897696, 2253514, 2326208, 2372120, 2907760, 3795392, 4507028, 4652416, 4744240, 5633785, 5815520, 7590784, 9014056, 9488480, 11267570, 11631040, 18028112, 18976960, 22535140, 23262080, 36056224, 37953920, 45070280, 72112448, 90140560, 144224896, 180281120, 360562240, 721124480]

約数ペア:

[(1, 721124480), (2, 360562240), (4, 180281120), (5, 144224896), (8, 90140560), (10, 72112448), (16, 45070280), (19, 37953920), (20, 36056224), (31, 23262080), (32, 22535140), (38, 18976960), (40, 18028112), (62, 11631040), (64, 11267570), (76, 9488480), (80, 9014056), (95, 7590784), (124, 5815520), (128, 5633785), (152, 4744240), (155, 4652416), (160, 4507028), (190, 3795392), (248, 2907760), (304, 2372120), (310, 2326208), (320, 2253514), (380, 1897696), (496, 1453880), (589, 1224320), (608, 1186060), (620, 1163104), (640, 1126757), (760, 948848), (992, 726940), (1178, 612160), (1216, 593030), (1240, 581552), (1520, 474424), (1913, 376960), (1984, 363470), (2356, 306080), (2432, 296515), (2480, 290776), (2945, 244864), (3040, 237212), (3826, 188480), (3968, 181735), (4712, 153040), (4960, 145388), (5890, 122432), (6080, 118606), (7652, 94240), (9424, 76520), (9565, 75392), (9920, 72694), (11780, 61216), (12160, 59303), (15304, 47120), (18848, 38260), (19130, 37696), (19840, 36347), (23560, 30608)]