221728260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{284267}}^1$

素因数の和:284292

約数の個数: 48

約数和(自身を含む): 668598336

約数和(自身を除く): 446870076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 284267, 568534, 852801, 1137068, 1421335, 1705602, 2842670, 3411204, 3695471, 4264005, 5685340, 7390942, 8528010, 11086413, 14781884, 17056020, 18477355, 22172826, 36954710, 44345652, 55432065, 73909420, 110864130, 221728260]

約数ペア:

[(1, 221728260), (2, 110864130), (3, 73909420), (4, 55432065), (5, 44345652), (6, 36954710), (10, 22172826), (12, 18477355), (13, 17056020), (15, 14781884), (20, 11086413), (26, 8528010), (30, 7390942), (39, 5685340), (52, 4264005), (60, 3695471), (65, 3411204), (78, 2842670), (130, 1705602), (156, 1421335), (195, 1137068), (260, 852801), (390, 568534), (780, 284267)]