18446720

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:116

約数の個数: 128

約数和(自身を含む): 48837600

約数和(自身を除く): 30390880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 37, 38, 40, 41, 64, 74, 76, 80, 82, 95, 128, 148, 152, 160, 164, 185, 190, 205, 296, 304, 320, 328, 370, 380, 410, 592, 608, 640, 656, 703, 740, 760, 779, 820, 1184, 1216, 1312, 1406, 1480, 1517, 1520, 1558, 1640, 2368, 2432, 2624, 2812, 2960, 3034, 3040, 3116, 3280, 3515, 3895, 4736, 5248, 5624, 5920, 6068, 6080, 6232, 6560, 7030, 7585, 7790, 11248, 11840, 12136, 12160, 12464, 13120, 14060, 15170, 15580, 22496, 23680, 24272, 24928, 26240, 28120, 28823, 30340, 31160, 44992, 48544, 49856, 56240, 57646, 60680, 62320, 89984, 97088, 99712, 112480, 115292, 121360, 124640, 144115, 194176, 224960, 230584, 242720, 249280, 288230, 449920, 461168, 485440, 498560, 576460, 922336, 970880, 1152920, 1844672, 2305840, 3689344, 4611680, 9223360, 18446720]

約数ペア:

[(1, 18446720), (2, 9223360), (4, 4611680), (5, 3689344), (8, 2305840), (10, 1844672), (16, 1152920), (19, 970880), (20, 922336), (32, 576460), (37, 498560), (38, 485440), (40, 461168), (41, 449920), (64, 288230), (74, 249280), (76, 242720), (80, 230584), (82, 224960), (95, 194176), (128, 144115), (148, 124640), (152, 121360), (160, 115292), (164, 112480), (185, 99712), (190, 97088), (205, 89984), (296, 62320), (304, 60680), (320, 57646), (328, 56240), (370, 49856), (380, 48544), (410, 44992), (592, 31160), (608, 30340), (640, 28823), (656, 28120), (703, 26240), (740, 24928), (760, 24272), (779, 23680), (820, 22496), (1184, 15580), (1216, 15170), (1312, 14060), (1406, 13120), (1480, 12464), (1517, 12160), (1520, 12136), (1558, 11840), (1640, 11248), (2368, 7790), (2432, 7585), (2624, 7030), (2812, 6560), (2960, 6232), (3034, 6080), (3040, 6068), (3116, 5920), (3280, 5624), (3515, 5248), (3895, 4736)]