72920160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:741

約数の個数: 144

約数和(自身を含む): 252383040

約数和(自身を除く): 179462880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 79, 80, 90, 96, 120, 144, 158, 160, 180, 237, 240, 288, 316, 360, 395, 474, 480, 632, 641, 711, 720, 790, 948, 1185, 1264, 1282, 1422, 1440, 1580, 1896, 1923, 2370, 2528, 2564, 2844, 3160, 3205, 3555, 3792, 3846, 4740, 5128, 5688, 5769, 6320, 6410, 7110, 7584, 7692, 9480, 9615, 10256, 11376, 11538, 12640, 12820, 14220, 15384, 18960, 19230, 20512, 22752, 23076, 25640, 28440, 28845, 30768, 37920, 38460, 46152, 50639, 51280, 56880, 57690, 61536, 76920, 92304, 101278, 102560, 113760, 115380, 151917, 153840, 184608, 202556, 230760, 253195, 303834, 307680, 405112, 455751, 461520, 506390, 607668, 759585, 810224, 911502, 923040, 1012780, 1215336, 1519170, 1620448, 1823004, 2025560, 2278755, 2430672, 3038340, 3646008, 4051120, 4557510, 4861344, 6076680, 7292016, 8102240, 9115020, 12153360, 14584032, 18230040, 24306720, 36460080, 72920160]

約数ペア:

[(1, 72920160), (2, 36460080), (3, 24306720), (4, 18230040), (5, 14584032), (6, 12153360), (8, 9115020), (9, 8102240), (10, 7292016), (12, 6076680), (15, 4861344), (16, 4557510), (18, 4051120), (20, 3646008), (24, 3038340), (30, 2430672), (32, 2278755), (36, 2025560), (40, 1823004), (45, 1620448), (48, 1519170), (60, 1215336), (72, 1012780), (79, 923040), (80, 911502), (90, 810224), (96, 759585), (120, 607668), (144, 506390), (158, 461520), (160, 455751), (180, 405112), (237, 307680), (240, 303834), (288, 253195), (316, 230760), (360, 202556), (395, 184608), (474, 153840), (480, 151917), (632, 115380), (641, 113760), (711, 102560), (720, 101278), (790, 92304), (948, 76920), (1185, 61536), (1264, 57690), (1282, 56880), (1422, 51280), (1440, 50639), (1580, 46152), (1896, 38460), (1923, 37920), (2370, 30768), (2528, 28845), (2564, 28440), (2844, 25640), (3160, 23076), (3205, 22752), (3555, 20512), (3792, 19230), (3846, 18960), (4740, 15384), (5128, 14220), (5688, 12820), (5769, 12640), (6320, 11538), (6410, 11376), (7110, 10256), (7584, 9615), (7692, 9480)]