998190080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:406

約数の個数: 176

約数和(自身を含む): 2609679360

約数和(自身を除く): 1611489280

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, 256, 304, 310, 320, 331, 380, 496, 512, 589, 608, 620, 640, 662, 760, 992, 1024, 1178, 1216, 1240, 1280, 1324, 1520, 1655, 1984, 2356, 2432, 2480, 2560, 2648, 2945, 3040, 3310, 3968, 4712, 4864, 4960, 5120, 5296, 5890, 6080, 6289, 6620, 7936, 9424, 9728, 9920, 10261, 10592, 11780, 12160, 12578, 13240, 15872, 18848, 19456, 19840, 20522, 21184, 23560, 24320, 25156, 26480, 31445, 31744, 37696, 39680, 41044, 42368, 47120, 48640, 50312, 51305, 52960, 62890, 75392, 79360, 82088, 84736, 94240, 97280, 100624, 102610, 105920, 125780, 150784, 158720, 164176, 169472, 188480, 194959, 201248, 205220, 211840, 251560, 301568, 328352, 338944, 376960, 389918, 402496, 410440, 423680, 503120, 603136, 656704, 753920, 779836, 804992, 820880, 847360, 974795, 1006240, 1313408, 1507840, 1559672, 1609984, 1641760, 1694720, 1949590, 2012480, 2626816, 3015680, 3119344, 3219968, 3283520, 3899180, 4024960, 5253632, 6238688, 6439936, 6567040, 7798360, 8049920, 10507264, 12477376, 13134080, 15596720, 16099840, 24954752, 26268160, 31193440, 32199680, 49909504, 52536320, 62386880, 99819008, 124773760, 199638016, 249547520, 499095040, 998190080]

約数ペア:

[(1, 998190080), (2, 499095040), (4, 249547520), (5, 199638016), (8, 124773760), (10, 99819008), (16, 62386880), (19, 52536320), (20, 49909504), (31, 32199680), (32, 31193440), (38, 26268160), (40, 24954752), (62, 16099840), (64, 15596720), (76, 13134080), (80, 12477376), (95, 10507264), (124, 8049920), (128, 7798360), (152, 6567040), (155, 6439936), (160, 6238688), (190, 5253632), (248, 4024960), (256, 3899180), (304, 3283520), (310, 3219968), (320, 3119344), (331, 3015680), (380, 2626816), (496, 2012480), (512, 1949590), (589, 1694720), (608, 1641760), (620, 1609984), (640, 1559672), (662, 1507840), (760, 1313408), (992, 1006240), (1024, 974795), (1178, 847360), (1216, 820880), (1240, 804992), (1280, 779836), (1324, 753920), (1520, 656704), (1655, 603136), (1984, 503120), (2356, 423680), (2432, 410440), (2480, 402496), (2560, 389918), (2648, 376960), (2945, 338944), (3040, 328352), (3310, 301568), (3968, 251560), (4712, 211840), (4864, 205220), (4960, 201248), (5120, 194959), (5296, 188480), (5890, 169472), (6080, 164176), (6289, 158720), (6620, 150784), (7936, 125780), (9424, 105920), (9728, 102610), (9920, 100624), (10261, 97280), (10592, 94240), (11780, 84736), (12160, 82088), (12578, 79360), (13240, 75392), (15872, 62890), (18848, 52960), (19456, 51305), (19840, 50312), (20522, 48640), (21184, 47120), (23560, 42368), (24320, 41044), (25156, 39680), (26480, 37696), (31445, 31744)]