25613900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 67808160

約数和(自身を除く): 42194260

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 25, 26, 34, 38, 50, 52, 61, 65, 68, 76, 85, 95, 100, 122, 130, 170, 190, 221, 244, 247, 260, 305, 323, 325, 340, 380, 425, 442, 475, 494, 610, 646, 650, 793, 850, 884, 950, 988, 1037, 1105, 1159, 1220, 1235, 1292, 1300, 1525, 1586, 1615, 1700, 1900, 2074, 2210, 2318, 2470, 3050, 3172, 3230, 3965, 4148, 4199, 4420, 4636, 4940, 5185, 5525, 5795, 6100, 6175, 6460, 7930, 8075, 8398, 10370, 11050, 11590, 12350, 13481, 15067, 15860, 16150, 16796, 19703, 19825, 20740, 20995, 22100, 23180, 24700, 25925, 26962, 28975, 30134, 32300, 39406, 39650, 41990, 51850, 53924, 57950, 60268, 67405, 75335, 78812, 79300, 83980, 98515, 103700, 104975, 115900, 134810, 150670, 197030, 209950, 256139, 269620, 301340, 337025, 376675, 394060, 419900, 492575, 512278, 674050, 753350, 985150, 1024556, 1280695, 1348100, 1506700, 1970300, 2561390, 5122780, 6403475, 12806950, 25613900]

約数ペア:

[(1, 25613900), (2, 12806950), (4, 6403475), (5, 5122780), (10, 2561390), (13, 1970300), (17, 1506700), (19, 1348100), (20, 1280695), (25, 1024556), (26, 985150), (34, 753350), (38, 674050), (50, 512278), (52, 492575), (61, 419900), (65, 394060), (68, 376675), (76, 337025), (85, 301340), (95, 269620), (100, 256139), (122, 209950), (130, 197030), (170, 150670), (190, 134810), (221, 115900), (244, 104975), (247, 103700), (260, 98515), (305, 83980), (323, 79300), (325, 78812), (340, 75335), (380, 67405), (425, 60268), (442, 57950), (475, 53924), (494, 51850), (610, 41990), (646, 39650), (650, 39406), (793, 32300), (850, 30134), (884, 28975), (950, 26962), (988, 25925), (1037, 24700), (1105, 23180), (1159, 22100), (1220, 20995), (1235, 20740), (1292, 19825), (1300, 19703), (1525, 16796), (1586, 16150), (1615, 15860), (1700, 15067), (1900, 13481), (2074, 12350), (2210, 11590), (2318, 11050), (2470, 10370), (3050, 8398), (3172, 8075), (3230, 7930), (3965, 6460), (4148, 6175), (4199, 6100), (4420, 5795), (4636, 5525), (4940, 5185)]