71481040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:141

約数の個数: 160

約数和(自身を含む): 189987840

約数和(自身を除く): 118506800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 37, 38, 40, 41, 62, 74, 76, 80, 82, 95, 124, 148, 152, 155, 164, 185, 190, 205, 248, 296, 304, 310, 328, 370, 380, 410, 496, 589, 592, 620, 656, 703, 740, 760, 779, 820, 1147, 1178, 1240, 1271, 1406, 1480, 1517, 1520, 1558, 1640, 2294, 2356, 2480, 2542, 2812, 2945, 2960, 3034, 3116, 3280, 3515, 3895, 4588, 4712, 5084, 5624, 5735, 5890, 6068, 6232, 6355, 7030, 7585, 7790, 9176, 9424, 10168, 11248, 11470, 11780, 12136, 12464, 12710, 14060, 15170, 15580, 18352, 20336, 21793, 22940, 23560, 24149, 24272, 25420, 28120, 28823, 30340, 31160, 43586, 45880, 47027, 47120, 48298, 50840, 56240, 57646, 60680, 62320, 87172, 91760, 94054, 96596, 101680, 108965, 115292, 120745, 121360, 144115, 174344, 188108, 193192, 217930, 230584, 235135, 241490, 288230, 348688, 376216, 386384, 435860, 461168, 470270, 482980, 576460, 752432, 871720, 893513, 940540, 965960, 1152920, 1743440, 1787026, 1881080, 1931920, 2305840, 3574052, 3762160, 4467565, 7148104, 8935130, 14296208, 17870260, 35740520, 71481040]

約数ペア:

[(1, 71481040), (2, 35740520), (4, 17870260), (5, 14296208), (8, 8935130), (10, 7148104), (16, 4467565), (19, 3762160), (20, 3574052), (31, 2305840), (37, 1931920), (38, 1881080), (40, 1787026), (41, 1743440), (62, 1152920), (74, 965960), (76, 940540), (80, 893513), (82, 871720), (95, 752432), (124, 576460), (148, 482980), (152, 470270), (155, 461168), (164, 435860), (185, 386384), (190, 376216), (205, 348688), (248, 288230), (296, 241490), (304, 235135), (310, 230584), (328, 217930), (370, 193192), (380, 188108), (410, 174344), (496, 144115), (589, 121360), (592, 120745), (620, 115292), (656, 108965), (703, 101680), (740, 96596), (760, 94054), (779, 91760), (820, 87172), (1147, 62320), (1178, 60680), (1240, 57646), (1271, 56240), (1406, 50840), (1480, 48298), (1517, 47120), (1520, 47027), (1558, 45880), (1640, 43586), (2294, 31160), (2356, 30340), (2480, 28823), (2542, 28120), (2812, 25420), (2945, 24272), (2960, 24149), (3034, 23560), (3116, 22940), (3280, 21793), (3515, 20336), (3895, 18352), (4588, 15580), (4712, 15170), (5084, 14060), (5624, 12710), (5735, 12464), (5890, 12136), (6068, 11780), (6232, 11470), (6355, 11248), (7030, 10168), (7585, 9424), (7790, 9176)]