25721748

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 76776336

約数和(自身を除く): 51054588

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 53, 61, 68, 78, 102, 106, 117, 122, 153, 156, 159, 183, 204, 212, 221, 234, 244, 306, 318, 366, 442, 468, 477, 549, 612, 636, 663, 689, 732, 793, 884, 901, 954, 1037, 1098, 1326, 1378, 1586, 1802, 1908, 1989, 2067, 2074, 2196, 2379, 2652, 2703, 2756, 3111, 3172, 3233, 3604, 3978, 4134, 4148, 4758, 5406, 6201, 6222, 6466, 7137, 7956, 8109, 8268, 9333, 9516, 9699, 10812, 11713, 12402, 12444, 12932, 13481, 14274, 16218, 18666, 19398, 23426, 24804, 26962, 28548, 29097, 32436, 35139, 37332, 38796, 40443, 42029, 46852, 53924, 54961, 58194, 70278, 80886, 84058, 105417, 109922, 116388, 121329, 126087, 140556, 161772, 164883, 168116, 210834, 219844, 242658, 252174, 329766, 378261, 421668, 485316, 494649, 504348, 659532, 714493, 756522, 989298, 1428986, 1513044, 1978596, 2143479, 2857972, 4286958, 6430437, 8573916, 12860874, 25721748]

約数ペア:

[(1, 25721748), (2, 12860874), (3, 8573916), (4, 6430437), (6, 4286958), (9, 2857972), (12, 2143479), (13, 1978596), (17, 1513044), (18, 1428986), (26, 989298), (34, 756522), (36, 714493), (39, 659532), (51, 504348), (52, 494649), (53, 485316), (61, 421668), (68, 378261), (78, 329766), (102, 252174), (106, 242658), (117, 219844), (122, 210834), (153, 168116), (156, 164883), (159, 161772), (183, 140556), (204, 126087), (212, 121329), (221, 116388), (234, 109922), (244, 105417), (306, 84058), (318, 80886), (366, 70278), (442, 58194), (468, 54961), (477, 53924), (549, 46852), (612, 42029), (636, 40443), (663, 38796), (689, 37332), (732, 35139), (793, 32436), (884, 29097), (901, 28548), (954, 26962), (1037, 24804), (1098, 23426), (1326, 19398), (1378, 18666), (1586, 16218), (1802, 14274), (1908, 13481), (1989, 12932), (2067, 12444), (2074, 12402), (2196, 11713), (2379, 10812), (2652, 9699), (2703, 9516), (2756, 9333), (3111, 8268), (3172, 8109), (3233, 7956), (3604, 7137), (3978, 6466), (4134, 6222), (4148, 6201), (4758, 5406)]