245796720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78781}}^1$

素因数の和:78810

約数の個数: 80

約数和(自身を含む): 820593312

約数和(自身を除く): 574796592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 78781, 157562, 236343, 315124, 393905, 472686, 630248, 787810, 945372, 1024153, 1181715, 1260496, 1575620, 1890744, 2048306, 2363430, 3072459, 3151240, 3781488, 4096612, 4726860, 5120765, 6144918, 6302480, 8193224, 9453720, 10241530, 12289836, 15362295, 16386448, 18907440, 20483060, 24579672, 30724590, 40966120, 49159344, 61449180, 81932240, 122898360, 245796720]

約数ペア:

[(1, 245796720), (2, 122898360), (3, 81932240), (4, 61449180), (5, 49159344), (6, 40966120), (8, 30724590), (10, 24579672), (12, 20483060), (13, 18907440), (15, 16386448), (16, 15362295), (20, 12289836), (24, 10241530), (26, 9453720), (30, 8193224), (39, 6302480), (40, 6144918), (48, 5120765), (52, 4726860), (60, 4096612), (65, 3781488), (78, 3151240), (80, 3072459), (104, 2363430), (120, 2048306), (130, 1890744), (156, 1575620), (195, 1260496), (208, 1181715), (240, 1024153), (260, 945372), (312, 787810), (390, 630248), (520, 472686), (624, 393905), (780, 315124), (1040, 236343), (1560, 157562), (3120, 78781)]