81995700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 249359040

約数和(自身を除く): 167363340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 37, 50, 60, 74, 75, 83, 89, 100, 111, 148, 150, 166, 178, 185, 222, 249, 267, 300, 332, 356, 370, 415, 444, 445, 498, 534, 555, 740, 830, 890, 925, 996, 1068, 1110, 1245, 1335, 1660, 1780, 1850, 2075, 2220, 2225, 2490, 2670, 2775, 3071, 3293, 3700, 4150, 4450, 4980, 5340, 5550, 6142, 6225, 6586, 6675, 7387, 8300, 8900, 9213, 9879, 11100, 12284, 12450, 13172, 13350, 14774, 15355, 16465, 18426, 19758, 22161, 24900, 26700, 29548, 30710, 32930, 36852, 36935, 39516, 44322, 46065, 49395, 61420, 65860, 73870, 76775, 82325, 88644, 92130, 98790, 110805, 147740, 153550, 164650, 184260, 184675, 197580, 221610, 230325, 246975, 273319, 307100, 329300, 369350, 443220, 460650, 493950, 546638, 554025, 738700, 819957, 921300, 987900, 1093276, 1108050, 1366595, 1639914, 2216100, 2733190, 3279828, 4099785, 5466380, 6832975, 8199570, 13665950, 16399140, 20498925, 27331900, 40997850, 81995700]

約数ペア:

[(1, 81995700), (2, 40997850), (3, 27331900), (4, 20498925), (5, 16399140), (6, 13665950), (10, 8199570), (12, 6832975), (15, 5466380), (20, 4099785), (25, 3279828), (30, 2733190), (37, 2216100), (50, 1639914), (60, 1366595), (74, 1108050), (75, 1093276), (83, 987900), (89, 921300), (100, 819957), (111, 738700), (148, 554025), (150, 546638), (166, 493950), (178, 460650), (185, 443220), (222, 369350), (249, 329300), (267, 307100), (300, 273319), (332, 246975), (356, 230325), (370, 221610), (415, 197580), (444, 184675), (445, 184260), (498, 164650), (534, 153550), (555, 147740), (740, 110805), (830, 98790), (890, 92130), (925, 88644), (996, 82325), (1068, 76775), (1110, 73870), (1245, 65860), (1335, 61420), (1660, 49395), (1780, 46065), (1850, 44322), (2075, 39516), (2220, 36935), (2225, 36852), (2490, 32930), (2670, 30710), (2775, 29548), (3071, 26700), (3293, 24900), (3700, 22161), (4150, 19758), (4450, 18426), (4980, 16465), (5340, 15355), (5550, 14774), (6142, 13350), (6225, 13172), (6586, 12450), (6675, 12284), (7387, 11100), (8300, 9879), (8900, 9213)]