80956720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:303

約数の個数: 160

約数和(自身を含む): 226860480

約数和(自身を除く): 145903760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 80, 85, 95, 104, 130, 136, 152, 170, 190, 208, 221, 241, 247, 260, 272, 304, 323, 340, 380, 442, 482, 494, 520, 646, 680, 760, 884, 964, 988, 1040, 1105, 1205, 1235, 1292, 1360, 1520, 1615, 1768, 1928, 1976, 2210, 2410, 2470, 2584, 3133, 3230, 3536, 3856, 3952, 4097, 4199, 4420, 4579, 4820, 4940, 5168, 6266, 6460, 8194, 8398, 8840, 9158, 9640, 9880, 12532, 12920, 15665, 16388, 16796, 17680, 18316, 19280, 19760, 20485, 20995, 22895, 25064, 25840, 31330, 32776, 33592, 36632, 40970, 41990, 45790, 50128, 53261, 59527, 62660, 65552, 67184, 73264, 77843, 81940, 83980, 91580, 106522, 119054, 125320, 155686, 163880, 167960, 183160, 213044, 238108, 250640, 266305, 297635, 311372, 327760, 335920, 366320, 389215, 426088, 476216, 532610, 595270, 622744, 778430, 852176, 952432, 1011959, 1065220, 1190540, 1245488, 1556860, 2023918, 2130440, 2381080, 3113720, 4047836, 4260880, 4762160, 5059795, 6227440, 8095672, 10119590, 16191344, 20239180, 40478360, 80956720]

約数ペア:

[(1, 80956720), (2, 40478360), (4, 20239180), (5, 16191344), (8, 10119590), (10, 8095672), (13, 6227440), (16, 5059795), (17, 4762160), (19, 4260880), (20, 4047836), (26, 3113720), (34, 2381080), (38, 2130440), (40, 2023918), (52, 1556860), (65, 1245488), (68, 1190540), (76, 1065220), (80, 1011959), (85, 952432), (95, 852176), (104, 778430), (130, 622744), (136, 595270), (152, 532610), (170, 476216), (190, 426088), (208, 389215), (221, 366320), (241, 335920), (247, 327760), (260, 311372), (272, 297635), (304, 266305), (323, 250640), (340, 238108), (380, 213044), (442, 183160), (482, 167960), (494, 163880), (520, 155686), (646, 125320), (680, 119054), (760, 106522), (884, 91580), (964, 83980), (988, 81940), (1040, 77843), (1105, 73264), (1205, 67184), (1235, 65552), (1292, 62660), (1360, 59527), (1520, 53261), (1615, 50128), (1768, 45790), (1928, 41990), (1976, 40970), (2210, 36632), (2410, 33592), (2470, 32776), (2584, 31330), (3133, 25840), (3230, 25064), (3536, 22895), (3856, 20995), (3952, 20485), (4097, 19760), (4199, 19280), (4420, 18316), (4579, 17680), (4820, 16796), (4940, 16388), (5168, 15665), (6266, 12920), (6460, 12532), (8194, 9880), (8398, 9640), (8840, 9158)]