71489340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:388

約数の個数: 144

約数和(自身を含む): 236291328

約数和(自身を除く): 164801988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 137, 156, 180, 195, 223, 234, 260, 274, 390, 411, 446, 468, 548, 585, 669, 685, 780, 822, 892, 1115, 1170, 1233, 1338, 1370, 1644, 1781, 2007, 2055, 2230, 2340, 2466, 2676, 2740, 2899, 3345, 3562, 4014, 4110, 4460, 4932, 5343, 5798, 6165, 6690, 7124, 8028, 8220, 8697, 8905, 10035, 10686, 11596, 12330, 13380, 14495, 16029, 17394, 17810, 20070, 21372, 24660, 26091, 26715, 28990, 30551, 32058, 34788, 35620, 40140, 43485, 52182, 53430, 57980, 61102, 64116, 80145, 86970, 91653, 104364, 106860, 122204, 130455, 152755, 160290, 173940, 183306, 260910, 274959, 305510, 320580, 366612, 397163, 458265, 521820, 549918, 611020, 794326, 916530, 1099836, 1191489, 1374795, 1588652, 1833060, 1985815, 2382978, 2749590, 3574467, 3971630, 4765956, 5499180, 5957445, 7148934, 7943260, 11914890, 14297868, 17872335, 23829780, 35744670, 71489340]

約数ペア:

[(1, 71489340), (2, 35744670), (3, 23829780), (4, 17872335), (5, 14297868), (6, 11914890), (9, 7943260), (10, 7148934), (12, 5957445), (13, 5499180), (15, 4765956), (18, 3971630), (20, 3574467), (26, 2749590), (30, 2382978), (36, 1985815), (39, 1833060), (45, 1588652), (52, 1374795), (60, 1191489), (65, 1099836), (78, 916530), (90, 794326), (117, 611020), (130, 549918), (137, 521820), (156, 458265), (180, 397163), (195, 366612), (223, 320580), (234, 305510), (260, 274959), (274, 260910), (390, 183306), (411, 173940), (446, 160290), (468, 152755), (548, 130455), (585, 122204), (669, 106860), (685, 104364), (780, 91653), (822, 86970), (892, 80145), (1115, 64116), (1170, 61102), (1233, 57980), (1338, 53430), (1370, 52182), (1644, 43485), (1781, 40140), (2007, 35620), (2055, 34788), (2230, 32058), (2340, 30551), (2466, 28990), (2676, 26715), (2740, 26091), (2899, 24660), (3345, 21372), (3562, 20070), (4014, 17810), (4110, 17394), (4460, 16029), (4932, 14495), (5343, 13380), (5798, 12330), (6165, 11596), (6690, 10686), (7124, 10035), (8028, 8905), (8220, 8697)]