278911360

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4789}}^1$

素因数の和:4828

約数の個数: 128

約数和(自身を含む): 820814400

約数和(自身を除く): 541903040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1456, 1664, 1820, 2080, 2240, 2912, 3640, 4160, 4480, 4789, 5824, 7280, 8320, 9578, 11648, 14560, 19156, 23945, 29120, 33523, 38312, 47890, 58240, 62257, 67046, 76624, 95780, 124514, 134092, 153248, 167615, 191560, 249028, 268184, 306496, 311285, 335230, 383120, 435799, 498056, 536368, 612992, 622570, 670460, 766240, 871598, 996112, 1072736, 1245140, 1340920, 1532480, 1743196, 1992224, 2145472, 2178995, 2490280, 2681840, 3064960, 3486392, 3984448, 4290944, 4357990, 4980560, 5363680, 6972784, 7968896, 8715980, 9961120, 10727360, 13945568, 17431960, 19922240, 21454720, 27891136, 34863920, 39844480, 55782272, 69727840, 139455680, 278911360]

約数ペア:

[(1, 278911360), (2, 139455680), (4, 69727840), (5, 55782272), (7, 39844480), (8, 34863920), (10, 27891136), (13, 21454720), (14, 19922240), (16, 17431960), (20, 13945568), (26, 10727360), (28, 9961120), (32, 8715980), (35, 7968896), (40, 6972784), (52, 5363680), (56, 4980560), (64, 4357990), (65, 4290944), (70, 3984448), (80, 3486392), (91, 3064960), (104, 2681840), (112, 2490280), (128, 2178995), (130, 2145472), (140, 1992224), (160, 1743196), (182, 1532480), (208, 1340920), (224, 1245140), (260, 1072736), (280, 996112), (320, 871598), (364, 766240), (416, 670460), (448, 622570), (455, 612992), (520, 536368), (560, 498056), (640, 435799), (728, 383120), (832, 335230), (896, 311285), (910, 306496), (1040, 268184), (1120, 249028), (1456, 191560), (1664, 167615), (1820, 153248), (2080, 134092), (2240, 124514), (2912, 95780), (3640, 76624), (4160, 67046), (4480, 62257), (4789, 58240), (5824, 47890), (7280, 38312), (8320, 33523), (9578, 29120), (11648, 23945), (14560, 19156)]