686388040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{659}}^1\times {\mathrm{2003}}^1$

素因数の和:2686

約数の個数: 64

約数和(自身を含む): 1666526400

約数和(自身を除く): 980138360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 659, 1318, 2003, 2636, 3295, 4006, 5272, 6590, 8012, 8567, 10015, 13180, 16024, 17134, 20030, 26039, 26360, 34268, 40060, 42835, 52078, 68536, 80120, 85670, 104156, 130195, 171340, 208312, 260390, 342680, 520780, 1041560, 1319977, 2639954, 5279908, 6599885, 10559816, 13199770, 17159701, 26399540, 34319402, 52799080, 68638804, 85798505, 137277608, 171597010, 343194020, 686388040]

約数ペア:

[(1, 686388040), (2, 343194020), (4, 171597010), (5, 137277608), (8, 85798505), (10, 68638804), (13, 52799080), (20, 34319402), (26, 26399540), (40, 17159701), (52, 13199770), (65, 10559816), (104, 6599885), (130, 5279908), (260, 2639954), (520, 1319977), (659, 1041560), (1318, 520780), (2003, 342680), (2636, 260390), (3295, 208312), (4006, 171340), (5272, 130195), (6590, 104156), (8012, 85670), (8567, 80120), (10015, 68536), (13180, 52078), (16024, 42835), (17134, 40060), (20030, 34268), (26039, 26360)]