82578860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 228172224

約数和(自身を除く): 145593364

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 157, 170, 182, 221, 238, 260, 289, 314, 340, 364, 442, 455, 476, 578, 595, 628, 785, 884, 910, 1099, 1105, 1156, 1190, 1445, 1547, 1570, 1820, 2023, 2041, 2198, 2210, 2380, 2669, 2890, 3094, 3140, 3757, 4046, 4082, 4396, 4420, 5338, 5495, 5780, 6188, 7514, 7735, 8092, 8164, 10115, 10205, 10676, 10990, 13345, 14287, 15028, 15470, 18683, 18785, 20230, 20410, 21980, 26299, 26690, 28574, 30940, 34697, 37366, 37570, 40460, 40820, 45373, 52598, 53380, 57148, 69394, 71435, 74732, 75140, 90746, 93415, 105196, 131495, 138788, 142870, 173485, 181492, 186830, 226865, 242879, 262990, 285740, 317611, 346970, 373660, 453730, 485758, 525980, 589849, 635222, 693940, 907460, 971516, 1179698, 1214395, 1270444, 1588055, 2359396, 2428790, 2949245, 3176110, 4128943, 4857580, 5898490, 6352220, 8257886, 11796980, 16515772, 20644715, 41289430, 82578860]

約数ペア:

[(1, 82578860), (2, 41289430), (4, 20644715), (5, 16515772), (7, 11796980), (10, 8257886), (13, 6352220), (14, 5898490), (17, 4857580), (20, 4128943), (26, 3176110), (28, 2949245), (34, 2428790), (35, 2359396), (52, 1588055), (65, 1270444), (68, 1214395), (70, 1179698), (85, 971516), (91, 907460), (119, 693940), (130, 635222), (140, 589849), (157, 525980), (170, 485758), (182, 453730), (221, 373660), (238, 346970), (260, 317611), (289, 285740), (314, 262990), (340, 242879), (364, 226865), (442, 186830), (455, 181492), (476, 173485), (578, 142870), (595, 138788), (628, 131495), (785, 105196), (884, 93415), (910, 90746), (1099, 75140), (1105, 74732), (1156, 71435), (1190, 69394), (1445, 57148), (1547, 53380), (1570, 52598), (1820, 45373), (2023, 40820), (2041, 40460), (2198, 37570), (2210, 37366), (2380, 34697), (2669, 30940), (2890, 28574), (3094, 26690), (3140, 26299), (3757, 21980), (4046, 20410), (4082, 20230), (4396, 18785), (4420, 18683), (5338, 15470), (5495, 15028), (5780, 14287), (6188, 13345), (7514, 10990), (7735, 10676), (8092, 10205), (8164, 10115)]