28781508

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 80494848

約数和(自身を除く): 51713340

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 61, 82, 84, 122, 123, 137, 164, 183, 244, 246, 274, 287, 366, 411, 427, 492, 548, 574, 732, 822, 854, 861, 959, 1148, 1281, 1644, 1708, 1722, 1918, 2501, 2562, 2877, 3444, 3836, 5002, 5124, 5617, 5754, 7503, 8357, 10004, 11234, 11508, 15006, 16714, 16851, 17507, 22468, 25071, 30012, 33428, 33702, 35014, 39319, 50142, 52521, 58499, 67404, 70028, 78638, 100284, 105042, 116998, 117957, 157276, 175497, 210084, 233996, 235914, 342637, 350994, 471828, 685274, 701988, 1027911, 1370548, 2055822, 2398459, 4111644, 4796918, 7195377, 9593836, 14390754, 28781508]

約数ペア:

[(1, 28781508), (2, 14390754), (3, 9593836), (4, 7195377), (6, 4796918), (7, 4111644), (12, 2398459), (14, 2055822), (21, 1370548), (28, 1027911), (41, 701988), (42, 685274), (61, 471828), (82, 350994), (84, 342637), (122, 235914), (123, 233996), (137, 210084), (164, 175497), (183, 157276), (244, 117957), (246, 116998), (274, 105042), (287, 100284), (366, 78638), (411, 70028), (427, 67404), (492, 58499), (548, 52521), (574, 50142), (732, 39319), (822, 35014), (854, 33702), (861, 33428), (959, 30012), (1148, 25071), (1281, 22468), (1644, 17507), (1708, 16851), (1722, 16714), (1918, 15006), (2501, 11508), (2562, 11234), (2877, 10004), (3444, 8357), (3836, 7503), (5002, 5754), (5124, 5617)]