51304725

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{263}}^1$

素因数の和:316

約数の個数: 72

約数和(自身を含む): 100499520

約数和(自身を除く): 49194795

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 135, 153, 225, 255, 263, 289, 425, 459, 675, 765, 789, 867, 1275, 1315, 1445, 2295, 2367, 2601, 3825, 3945, 4335, 4471, 6575, 7101, 7225, 7803, 11475, 11835, 13005, 13413, 19725, 21675, 22355, 35505, 39015, 40239, 59175, 65025, 67065, 76007, 111775, 120717, 177525, 195075, 201195, 228021, 335325, 380035, 603585, 684063, 1005975, 1140105, 1900175, 2052189, 3017925, 3420315, 5700525, 10260945, 17101575, 51304725]

約数ペア:

[(1, 51304725), (3, 17101575), (5, 10260945), (9, 5700525), (15, 3420315), (17, 3017925), (25, 2052189), (27, 1900175), (45, 1140105), (51, 1005975), (75, 684063), (85, 603585), (135, 380035), (153, 335325), (225, 228021), (255, 201195), (263, 195075), (289, 177525), (425, 120717), (459, 111775), (675, 76007), (765, 67065), (789, 65025), (867, 59175), (1275, 40239), (1315, 39015), (1445, 35505), (2295, 22355), (2367, 21675), (2601, 19725), (3825, 13413), (3945, 13005), (4335, 11835), (4471, 11475), (6575, 7803), (7101, 7225)]