64978480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:267

約数の個数: 160

約数和(自身を含む): 188559360

約数和(自身を除く): 123580880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 80, 95, 112, 124, 133, 140, 152, 155, 190, 197, 217, 248, 266, 280, 304, 310, 380, 394, 434, 496, 532, 560, 589, 620, 665, 760, 788, 868, 985, 1064, 1085, 1178, 1240, 1330, 1379, 1520, 1576, 1736, 1970, 2128, 2170, 2356, 2480, 2660, 2758, 2945, 3152, 3472, 3743, 3940, 4123, 4340, 4712, 5320, 5516, 5890, 6107, 6895, 7486, 7880, 8246, 8680, 9424, 10640, 11032, 11780, 12214, 13790, 14972, 15760, 16492, 17360, 18715, 20615, 22064, 23560, 24428, 26201, 27580, 29944, 30535, 32984, 37430, 41230, 42749, 47120, 48856, 52402, 55160, 59888, 61070, 65968, 74860, 82460, 85498, 97712, 104804, 110320, 116033, 122140, 131005, 149720, 164920, 170996, 209608, 213745, 232066, 244280, 262010, 299440, 329840, 341992, 419216, 427490, 464132, 488560, 524020, 580165, 683984, 812231, 854980, 928264, 1048040, 1160330, 1624462, 1709960, 1856528, 2096080, 2320660, 3248924, 3419920, 4061155, 4641320, 6497848, 8122310, 9282640, 12995696, 16244620, 32489240, 64978480]

約数ペア:

[(1, 64978480), (2, 32489240), (4, 16244620), (5, 12995696), (7, 9282640), (8, 8122310), (10, 6497848), (14, 4641320), (16, 4061155), (19, 3419920), (20, 3248924), (28, 2320660), (31, 2096080), (35, 1856528), (38, 1709960), (40, 1624462), (56, 1160330), (62, 1048040), (70, 928264), (76, 854980), (80, 812231), (95, 683984), (112, 580165), (124, 524020), (133, 488560), (140, 464132), (152, 427490), (155, 419216), (190, 341992), (197, 329840), (217, 299440), (248, 262010), (266, 244280), (280, 232066), (304, 213745), (310, 209608), (380, 170996), (394, 164920), (434, 149720), (496, 131005), (532, 122140), (560, 116033), (589, 110320), (620, 104804), (665, 97712), (760, 85498), (788, 82460), (868, 74860), (985, 65968), (1064, 61070), (1085, 59888), (1178, 55160), (1240, 52402), (1330, 48856), (1379, 47120), (1520, 42749), (1576, 41230), (1736, 37430), (1970, 32984), (2128, 30535), (2170, 29944), (2356, 27580), (2480, 26201), (2660, 24428), (2758, 23560), (2945, 22064), (3152, 20615), (3472, 18715), (3743, 17360), (3940, 16492), (4123, 15760), (4340, 14972), (4712, 13790), (5320, 12214), (5516, 11780), (5890, 11032), (6107, 10640), (6895, 9424), (7486, 8680), (7880, 8246)]