9989440

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 112

約数和(自身を含む): 26334720

約数和(自身を除く): 16345280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 53, 62, 64, 76, 80, 95, 106, 124, 152, 155, 160, 190, 212, 248, 265, 304, 310, 320, 380, 424, 496, 530, 589, 608, 620, 760, 848, 992, 1007, 1060, 1178, 1216, 1240, 1520, 1643, 1696, 1984, 2014, 2120, 2356, 2480, 2945, 3040, 3286, 3392, 4028, 4240, 4712, 4960, 5035, 5890, 6080, 6572, 8056, 8215, 8480, 9424, 9920, 10070, 11780, 13144, 16112, 16430, 16960, 18848, 20140, 23560, 26288, 31217, 32224, 32860, 37696, 40280, 47120, 52576, 62434, 64448, 65720, 80560, 94240, 105152, 124868, 131440, 156085, 161120, 188480, 249736, 262880, 312170, 322240, 499472, 525760, 624340, 998944, 1248680, 1997888, 2497360, 4994720, 9989440]

約数ペア:

[(1, 9989440), (2, 4994720), (4, 2497360), (5, 1997888), (8, 1248680), (10, 998944), (16, 624340), (19, 525760), (20, 499472), (31, 322240), (32, 312170), (38, 262880), (40, 249736), (53, 188480), (62, 161120), (64, 156085), (76, 131440), (80, 124868), (95, 105152), (106, 94240), (124, 80560), (152, 65720), (155, 64448), (160, 62434), (190, 52576), (212, 47120), (248, 40280), (265, 37696), (304, 32860), (310, 32224), (320, 31217), (380, 26288), (424, 23560), (496, 20140), (530, 18848), (589, 16960), (608, 16430), (620, 16112), (760, 13144), (848, 11780), (992, 10070), (1007, 9920), (1060, 9424), (1178, 8480), (1216, 8215), (1240, 8056), (1520, 6572), (1643, 6080), (1696, 5890), (1984, 5035), (2014, 4960), (2120, 4712), (2356, 4240), (2480, 4028), (2945, 3392), (3040, 3286)]