19499928

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 60480000

約数和(自身を除く): 40980072

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 41, 42, 56, 57, 76, 82, 84, 114, 123, 133, 149, 152, 164, 168, 228, 246, 266, 287, 298, 328, 399, 447, 456, 492, 532, 574, 596, 779, 798, 861, 894, 984, 1043, 1064, 1148, 1192, 1558, 1596, 1722, 1788, 2086, 2296, 2337, 2831, 3116, 3129, 3192, 3444, 3576, 4172, 4674, 5453, 5662, 6109, 6232, 6258, 6888, 8344, 8493, 9348, 10906, 11324, 12218, 12516, 16359, 16986, 18327, 18696, 19817, 21812, 22648, 24436, 25032, 32718, 33972, 36654, 39634, 42763, 43624, 48872, 59451, 65436, 67944, 73308, 79268, 85526, 116071, 118902, 128289, 130872, 146616, 158536, 171052, 232142, 237804, 256578, 342104, 348213, 464284, 475608, 513156, 696426, 812497, 928568, 1026312, 1392852, 1624994, 2437491, 2785704, 3249988, 4874982, 6499976, 9749964, 19499928]

約数ペア:

[(1, 19499928), (2, 9749964), (3, 6499976), (4, 4874982), (6, 3249988), (7, 2785704), (8, 2437491), (12, 1624994), (14, 1392852), (19, 1026312), (21, 928568), (24, 812497), (28, 696426), (38, 513156), (41, 475608), (42, 464284), (56, 348213), (57, 342104), (76, 256578), (82, 237804), (84, 232142), (114, 171052), (123, 158536), (133, 146616), (149, 130872), (152, 128289), (164, 118902), (168, 116071), (228, 85526), (246, 79268), (266, 73308), (287, 67944), (298, 65436), (328, 59451), (399, 48872), (447, 43624), (456, 42763), (492, 39634), (532, 36654), (574, 33972), (596, 32718), (779, 25032), (798, 24436), (861, 22648), (894, 21812), (984, 19817), (1043, 18696), (1064, 18327), (1148, 16986), (1192, 16359), (1558, 12516), (1596, 12218), (1722, 11324), (1788, 10906), (2086, 9348), (2296, 8493), (2337, 8344), (2831, 6888), (3116, 6258), (3129, 6232), (3192, 6109), (3444, 5662), (3576, 5453), (4172, 4674)]